Machines for drying, heating, calcining and cooling of industrial materials, namely, gypsum, limestone, coal and ore, for material processing in chemical processing plants, industrial processing plants for minerals and in power plants; process gas coolers for machines and motors for the petrochemical or chemical industry, namely, for gasification processes; heat exchangers as part of machines and machines that make up part of heat recovery plants for heat recovery from manufacturing processes in the chemical, petrochemical, metallurgical or glass industry or for heat recovery in power stations; recuperators as part of machines and machines that make up part of recuperating plants for use in the metallurgical industry, on melting furnaces of mineral wool production, chemical or petrochemical manufacturing processes, or on fluidized bed furnaces for sludge combustion; heat exchangers as part of machines for air or fuel preheating; heat exchangers as parts of machines for recovery of gas turbine waste heat; industrial grinding machines being grinding mills, rolling mills, impact mills, bowl mills and pulverizers for chemical processing, minerals processing, foodstuffs processing and for material processing in power generation plants consisting of electric grinding devices; mills and associated system components for power generation and industrial applications including for mineral processing industries, namely, grinding mills consisting of electric grinding devices for size reduction and classification of materials including coal, minerals, food products, coating products, cosmetic products, filler products, pigment materials, extender materials, filler materials, chemical materials, limestone, clay, graphite, cocoa, marble, kaolin, sugar, talc, synthetic resins, organic and inorganic coloring materials, phosphate, glass, enamel, pharmaceuticals

Air preheaters and gas-gas heaters for gas processing, namely, rotary regenerative heat exchangers not being parts of machines and heat exchangers not being parts of machines for chemical plants for use in thermal power generation facilities and industrial plants; flat and profiled heat exchanger panels; coolers, namely, coolers for gasification process and process gas coolers used in industrial, chemical, or materials processing applications; heat exchangers not being parts of machines; convection recuperators for chemical processing and other industrial processing applications, namely, recuperators for flue gas desulfurization and recuperators for selective catalyst reduction; thermal oxidizers for use in industrial plant, namely, for destroying airborne volatile organic compounds and other air pollutants from industrial operations; systems consisting of heat exchangers and process gas coolers for the heat transfer for petrochemical chemical and metallurgical production processes, namely, process gas coolers not being part of machines in the nature of transfer line exchangers and steam generating heat exchangers not being part of machines used in gasification processes; waste heat steam generators and high temperature heat exchangers not being parts of machines; steam generator system consisting primarily of steam generators for processing gas and heat recovery in steam reforming manufacturing processes, heat recovery in chemical and metallurgical manufacturing processes, and heat recovery processes after partial oxidation; heat recovery downstream system comprised primarily of heat exchangers not being part of machines used to assist ammonia combustion in nitric acid and caprolactam manufacturing processes; heat recovery steam generators in fire tube, water tube and double tube design for chemical metallurgical and glass technological manufacturing processes; heat recovery steam generators for the utilization of gas turbine heat; air classifiers and associated system components for mills for power generation and industrial applications including for mineral processing industries, namely dynamic or static filtration system consisting of mesh filter for gas conditioning and cyclonic filtration apparatus for gas conditioning not being parts of machines; industrial flash dryers for dehydrating solid particles; mechanical separators for removing solid particles from air; industrial dryers used for removing water from materials and for removing water from food products in food processing plants; industrial coolers used for cooling materials and cooling food products in food processing plants; industrial calciners, namely limestone calcination machines; kilns for industrial purposes; heat exchangers as parts of a steam generator system for heat recovery from manufacturing processes in the chemical, petrochemical, metallurgical, or glass industry or for heat recovery in power stations; high temperature preheaters as parts of a steam generator system for air, gaseous or liquid substances for chemical and metallurgical manufacturing processes or glass manufacture; recuperators as parts of a steam generator system for use in the metallurgical industry, on melting furnaces or in mineral wool production, chemical or petrochemical manufacturing processes, or on fluidized bed furnaces for sludge combustion; thermal post-combustion furnaces for dust-laden gases, blast furnaces gas containing C02 or exhaust air containing solvents downstream of various manufacturing processes; heat exchangers as parts of a steam generator system for air or fuel preheating; heat exchangers as parts of a steam generator system for the recovery of gas turbine waste heat

Customer service, namely, cost price analysis with respect to machines for drying, heating, calcining and cooling of industrial materials in chemical processing plants, industrial processing plants for minerals and in power plants namely, gypsum, limestone, coal and ore; Customer service, namely, cost price analysis with respect to process gas coolers for machines and motors for the petrochemical or chemical industry including for gasification processes; Customer service, namely, cost price analysis with respect to heat exchangers as part of machines and plants for heat recovery from manufacturing processes in the chemical, petrochemical, metallurgical or glass industry or for heat recovery in power stations; Customer service, namely, cost price analysis with respect to recuperators as part of machines or plant for use in the metallurgical industry, on melting furnaces of mineral wool production, chemical or petrochemical manufacturing processes, or on fluidized bed furnaces for sludge combustion; Customer service, namely, cost price analysis with respect to heat exchangers as part of machines for air or fuel preheating; Customer service, namely, cost price analysis with respect to heat exchangers as parts of machines for recovery of gas turbine waste heat; Customer service, namely, cost price analysis with respect to industrial grinding machines being grinding mills, rolling mills, impact mills, bowl mills and pulverizers for chemical processing, minerals processing, foodstuffs processing and power generation plants consisting of electric grinding devices; Customer service, namely, cost price analysis with respect to air classifiers and associated system components for mills for power generation and industrial applications including for mineral processing industries, namely, dynamic or static filtration system consisting of mesh filter and/or cyclonic filtration apparatus; Customer service, namely, cost price analysis with respect to chimney flues and installations for conveying exhaust gases, namely, away from industrial furnaces and boilers; Customer service, namely, cost price analysis with respect to air preheaters and gas-gas heaters for gas processing including use in thermal power generation facilities and industrial plants, including rotary regenerative heat exchangers not being parts of machines and heat exchangers not being parts of machines for chemical plants; Customer service, namely, cost price analysis with respect to flat and profiled heat exchanger panels; Customer service, namely, cost price analysis with respect to coolers, namely, those used in industrial chemical or materials processing applications; Customer service, namely, cost price analysis with respect to heat exchangers not being parts of machines; Customer service, namely, cost price analysis with respect to convection recuperators for chemical processing and other industrial processing applications; Customer service, namely, cost price analysis with respect to thermal oxidizers for use in industrial plant; Customer service, namely, cost price analysis with respect to systems consisting of heat exchangers and process gas coolers for the heat transfer for petrochemical chemical am metallurgical production processes, namely, process gas coolers not being part of machines in the nature of transfer line exchangers and steam generating heat exchangers not being part of machines used in gasification processes; Customer service, namely, cost price analysis with respect to waste heat steam generators and high temperature heat exchangers not being parts of machines; Customer service, namely, cost price analysis with respect to steam generator system consisting primarily of steam generators for processing gas and heat recovery in steam reforming manufacturing processes, heat recovery in chemical and metallurgical manufacturing processes, heat recovery processes after partial oxidation; Customer service, namely, cost price analysis with respect to heat recovery downstream system comprised primarily of heat exchangers not being part of machines used to assist ammonia combustion in nitric acid and caprolactam manufacturing processes; Customer service, namely, cost price analysis with respect to heat recovery steam generators in fire tube, water tube and double tube design for chemical metallurgical and glass technological manufacturing processes; Customer service, namely, cost price analysis with respect to heat recovery steam generators for the utilization of gas turbine heat; Customer service, namely, cost price analysis with respect to industrial flash dryers for dehydrating solid particles; Customer service, namely, cost price analysis with respect to mechanical separators for removing solid particles from air; Customer service, namely, cost price analysis with respect to industrial dryers for materials and food processing plants not being parts of machines; Customer service, namely, cost price analysis with respect to industrial coolers for materials and food processing plants not being parts of machines; Customer service, namely, cost price analysis with respect to industrial calciners, namely, limestone calcination machines; Customer service, namely, cost price analysis with respect to kilns for industrial purposes; Customer service, namely, cost price analysis with respect to heat exchangers as parts of a steam generator system for heat recovery from manufacturing processes in the chemical petrochemical metallurgical or glass industry or for heat recovery in power stations; Customer service, namely, cost price analysis with respect to high temperature preheaters as parts of a steam generator system for air, gaseous or liquid substances for chemical am metallurgical manufacturing processes or glass manufacture; Customer service, namely, cost price analysis with respect to recuperators as parts of a steam generator system for use in the metallurgical industry, on melting furnaces or mineral wool production, chemical or petrochemical manufacturing processes, or on fluidized bed furnaces for sludge combustion; Customer service, namely, cost price analysis with respect to thermal post-combustion furnaces for dust-laden gases, blast furnaces gas containing C02 or exhaust air containing solvents downstream of various manufacturing processes; Customer service, namely, cost price analysis with respect to heat exchangers as parts of a steam generator system for air or fuel preheating, and heat exchangers as parts of a steam generator system for the recovery of gas turbine waste heat

Building, namely, building construction services; construction of industrial facilities; demolition of industrial facilities; customer service, namely, installation, cleaning, retrofitting and repair, replacement in the nature of repair and maintenance of machines for drying, heating, calcining and cooling of industrial materials in chemical processing plants, industrial processing plants for minerals and in power plants namely, gypsum, limestone, coal and ore; customer service, namely, installation, cleaning, retrofitting and repair, replacement in the nature of repair and maintenance of process gas coolers for machines and motors for the petrochemical or chemical industry including for gasification processes; customer service, namely, installation, cleaning, retrofitting and repair, replacement in the nature of repair and maintenance of heat exchangers as part of machines and plants for heat recovery from manufacturing processes in the chemical, petrochemical, metallurgical or glass industry or for heat recovery in power stations; customer service, namely, installation, cleaning, retrofitting and repair, replacement in the nature of repair and maintenance of recuperators as part of machines or plant for use in the metallurgical industry, on melting furnaces of mineral wool production, chemical or petrochemical manufacturing processes, or on fluidized bed furnaces for sludge combustion; customer service, namely, installation, cleaning, retrofitting and repair, replacement in the nature of repair and maintenance of heat exchangers as part of machines for air or fuel preheating; customer service, namely, installation, cleaning, retrofitting and repair, replacement in the nature of repair and maintenance of heat exchangers as parts of machines for recovery of gas turbine waste heat; customer service, namely, installation, cleaning, retrofitting and repair, replacement in the nature of repair and maintenance of industrial grinding machines being grinding mills, rolling mills, impact mills, bowl mills and pulverizers for chemical processing, minerals processing, foodstuffs processing and power generation plants consisting of electric grinding devices; customer service, namely, installation, cleaning, retrofitting and repair, replacement in the nature of repair and maintenance of air classifiers and associated system components for mills for power generation and industrial applications including for mineral processing industries, namely, dynamic or static filtration system consisting of mesh filter and cyclonic filtration apparatus; customer service, namely, installation, cleaning, retrofitting and repair, replacement in the nature of repair and maintenance of chimney flues and installations for conveying exhaust gases, namely, away from industrial furnaces and boilers; customer service, namely, installation, cleaning, retrofitting and repair, replacement in the nature of repair and maintenance of air preheaters and gas-gas heaters for gas processing including use in thermal power generation facilities and industrial plants, including rotary regenerative heat exchangers not being parts of machines and heat exchangers not being parts of machines for chemical plants; customer service, namely, installation, cleaning, retrofitting and repair, replacement in the nature of repair and maintenance of flat and profiled heat exchanger panels; customer service, namely, installation, cleaning, retrofitting and repair, replacement in the nature of repair and maintenance of coolers, namely, those used in industrial chemical or materials processing applications; customer service, namely, installation, cleaning, retrofitting and repair, replacement in the nature of repair and maintenance of heat exchangers not being parts of machines; customer service, namely, installation, cleaning, retrofitting and repair, replacement in the nature of repair and maintenance of convection recuperators for chemical processing and other industrial processing applications; customer service, namely, installation, cleaning, retrofitting and repair, replacement in the nature of repair and maintenance of thermal oxidizers for use in industrial plant; customer service, namely, installation, cleaning, retrofitting and repair, replacement in the nature of repair and maintenance of systems consisting of heat exchangers and process gas coolers for the heat transfer for petrochemical chemical am metallurgical production processes, namely, process gas coolers not being part of machines in the nature of transfer line exchangers and steam generating heat exchangers not being part of machines used in gasification processes; customer service, namely, installation, cleaning, retrofitting and repair, replacement in the nature of repair and maintenance of waste heat steam generators and high temperature heat exchangers not being parts of machines; customer service, namely, installation, cleaning, retrofitting and repair, replacement in the nature of repair and maintenance of steam generator system consisting primarily of steam generators for processing gas and heat recovery in steam reforming manufacturing processes, heat recovery in chemical and metallurgical manufacturing processes, heat recovery processes after partial oxidation; customer service, namely, installation, cleaning, retrofitting and repair, replacement in the nature of repair and maintenance of heat recovery downstream system comprised primarily of heat exchangers not being part of machines used to assist ammonia combustion in nitric acid and caprolactam manufacturing processes; customer service, namely, installation, cleaning, retrofitting and repair, replacement in the nature of repair and maintenance of heat recovery steam generators in fire tube, water tube and double tube design for chemical metallurgical and glass technological manufacturing processes; customer service, namely, installation, cleaning, retrofitting and repair, replacement in the nature of repair and maintenance of heat recovery steam generators for the utilization of gas turbine heat; customer service, namely, installation, cleaning, retrofitting and repair, replacement in the nature of repair and maintenance of industrial flash dryers for dehydrating solid particles; customer service, namely, installation, cleaning, retrofitting and repair, replacement in the nature of repair and maintenance of mechanical separators for removing solid particles from air; customer service, namely, installation, cleaning, retrofitting and repair, replacement in the nature of repair and maintenance of industrial dryers for materials and food processing plants not being parts of machines; customer service, namely, installation, cleaning, retrofitting and repair, replacement in the nature of repair and maintenance of industrial coolers for materials and food processing plants not being parts of machines; customer service, namely, installation, cleaning, retrofitting and repair, replacement in the nature of repair and maintenance of industrial calciners, namely, limestone calcination machines; customer service, namely, installation, cleaning, retrofitting and repair, replacement in the nature of repair and maintenance of kilns for industrial purposes; customer service, namely, installation, cleaning, retrofitting and repair, replacement in the nature of repair and maintenance of heat exchangers as parts of a steam generator system for heat recovery from manufacturing processes in the chemical petrochemical metallurgical or glass industry or for heat recovery in power stations; customer service, namely, installation, cleaning, retrofitting and repair, replacement in the nature of repair and maintenance of high temperature preheaters as parts of a steam generator system for air, gaseous or liquid substances for chemical am metallurgical manufacturing processes or glass manufacture; customer service, namely, installation, cleaning, retrofitting and repair, replacement in the nature of repair and maintenance of recuperators as parts of a steam generator system for use in the metallurgical industry, on melting furnaces or mineral wool production, chemical or petrochemical manufacturing processes, or on fluidized bed furnaces for sludge combustion; customer service, namely, installation, cleaning, retrofitting and repair, replacement in the nature of repair and maintenance of thermal post-combustion furnaces for dust-laden gases, blast furnaces gas containing C02 or exhaust air containing solvents downstream of various manufacturing processes, and heat exchangers as parts of a steam generator system for air or fuel preheating; customer service, namely, installation, cleaning, retrofitting and repair, replacement in the nature of repair and maintenance of heat exchangers as parts of a steam generator system for the recovery of gas turbine waste heat

Customer service, namely, delivery of the spare parts for machines for drying, heating, calcining and cooling of industrial materials in chemical processing plants, industrial processing plants for minerals and in power plants namely, gypsum, limestone, coal and ore; Customer service, namely, delivery of the spare parts for process gas coolers for machines and motors for the petrochemical or chemical industry including for gasification processes; Customer service, namely, delivery of the spare parts for heat exchangers as part of machines and plants for heat recovery from manufacturing processes in the chemical, petrochemical, metallurgical or glass industry or for heat recovery in power stations; Customer service, namely, delivery of the spare parts for recuperators as part of machines or plant for use in the metallurgical industry, on melting furnaces of mineral wool production, chemical or petrochemical manufacturing processes, or on fluidized bed furnaces for sludge combustion; Customer service, namely, delivery of the spare parts for heat exchangers as part of machines for air or fuel preheating; Customer service, namely, delivery of the spare parts for heat exchangers as parts of machines for recovery of gas turbine waste heat; Customer service, namely, delivery of the spare parts for industrial grinding machines being grinding mills, rolling mills, impact mills, bowl mills and pulverizers for chemical processing, minerals processing, foodstuffs processing and power generation plants consisting of electric grinding devices; Customer service, namely, delivery of the spare parts for air classifiers and associated system components for mills for power generation and industrial applications including for mineral processing industries, namely, dynamic or static filtration system consisting of mesh filter and cyclonic filtration apparatus; Customer service, namely, delivery of the spare parts for chimney flues and installations for conveying exhaust gases, namely, away from industrial furnaces and boilers; Customer service, namely, delivery of the spare parts for air preheaters and gas-gas heaters for gas processing including use in thermal power generation facilities and industrial plants, including rotary regenerative heat exchangers not being parts of machines and heat exchangers not being parts of machines for chemical plants; Customer service, namely, delivery of the spare parts for flat and profiled heat exchanger panels; Customer service, namely, delivery of the spare parts for coolers, namely, those used in industrial chemical or materials processing applications; Customer service, namely, delivery of the spare parts for heat exchangers not being parts of machines; Customer service, namely, delivery of the spare parts for convection recuperators for chemical processing and other industrial processing applications; Customer service, namely, delivery of the spare parts for thermal oxidizers for use in industrial plant; Customer service, namely, delivery of the spare parts for systems consisting of heat exchangers and process gas coolers for the heat transfer for petrochemical chemical am metallurgical production processes, namely, process gas coolers not being part of machines in the nature of transfer line exchangers and steam generating heat exchangers not being part of machines used in gasification processes; Customer service, namely, delivery of the spare parts for waste heat steam generators and high temperature heat exchangers not being parts of machines; Customer service, namely, delivery of the spare parts for steam generator system consisting primarily of steam generators for processing gas and heat recovery in steam reforming manufacturing processes, heat recovery in chemical and metallurgical manufacturing processes, heat recovery processes after partial oxidation; Customer service, namely, delivery of the spare parts for heat recovery downstream system comprised primarily of heat exchangers not being part of machines used to assist ammonia combustion in nitric acid and caprolactam manufacturing processes; Customer service, namely, delivery of the spare parts for heat recovery steam generators in fire tube, water tube and double tube design for chemical metallurgical and glass technological manufacturing processes; heat recovery steam generators for the utilization of gas turbine heat; Customer service, namely, delivery of the spare parts for industrial flash dryers for dehydrating solid particles; Customer service, namely, delivery of the spare parts for mechanical separators for removing solid particles from air; Customer service, namely, delivery of the spare parts for industrial dryers for materials and food processing plants not being parts of machines; Customer service, namely, delivery of the spare parts for industrial coolers for materials and food processing plants not being parts of machines; Customer service, namely, delivery of the spare parts for industrial calciners, namely, limestone calcination machines; Customer service, namely, delivery of the spare parts for kilns for industrial purposes; Customer service, namely, delivery of the spare parts for heat exchangers as parts of a steam generator system for heat recovery from manufacturing processes in the chemical petrochemical metallurgical or glass industly or for heat recovery in power stations; Customer service, namely, delivery of the spare parts for high temperature preheaters as parts of a steam generator system for air, gaseous or liquid substances for chemical am metallurgical manufacturing processes or glass manufacture; Customer service, namely, delivery of the spare parts for recuperators as parts of a steam generator system for use in the metallurgical industry, on melting furnaces or mineral wool production, chemical or petrochemical manufacturing processes, or on fluidized bed furnaces for sludge combustion; Customer service, namely, delivery of the spare parts for thermal post-combustion furnaces for dust-laden gases, blast furnaces gas containing C02 or exhaust air containing solvents downstream of various manufacturing processes; Customer service, namely, delivery of the spare parts for heat exchangers as parts of a steam generator system for air or fuel preheating, and heat exchangers as parts of a steam generator system for the recovery of gas turbine waste heat

Grinding; cooling of industrial materials, in particular gypsum, limestone, coal and ore in chemical processing plants, industrial processing plants for minerals and in power plants; energy production; drying and heating as part of an industrial materials conditioning process, food process or chemical process; calcination for the purpose of chemical treatment

Design services, namely, plant design services for chemical plants, power plants, materials conditioning plants and metals processing plants; engineering technical consulting services; customer service, namely, technical consultancy in the field of design and inspection services relating to machines for drying, heating, calcining and cooling of industrial materials in chemical processing plants, industrial processing plants for minerals and in power plants, namely, gypsum, limestone, coal and ore; customer service, namely, technical consultancy in the field of design and inspection services relating to process gas coolers for machines and motors for the petrochemical or chemical industry including for gasification processes; customer service, namely, technical consultancy in the field of design and inspection services relating to heat exchangers as part of machines and plants for heat recovery from manufacturing processes in the chemical, petrochemical, metallurgical or glass industry or for heat recovery in power stations; customer service, namely, technical consultancy in the field of design and inspection services relating to recuperators as part of machines or plant for use in the metallurgical industry, on melting furnaces of mineral wool production, chemical or petrochemical manufacturing processes, or on fluidized bed furnaces for sludge combustion; customer service, namely, technical consultancy in the field of design and inspection services relating to heat exchangers as part of machines for air or fuel preheating; customer service, namely, technical consultancy in the field of design and inspection services relating to heat exchangers as parts of machines for recovery of gas turbine waste heat; customer service, namely, technical consultancy in the field of design and inspection services relating to industrial grinding machines being grinding mills, rolling mills, impact mills, bowl mills and pulverizers for chemical processing, minerals processing, foodstuffs processing and power generation plants consisting of electric grinding devices; customer service, namely, technical consultancy in the field of design and inspection services relating to air classifiers and associated system components for mills for power generation and industrial applications including for mineral processing industries, namely, dynamic or static filtration system consisting of mesh filter and/or cyclonic filtration apparatus; customer service, namely, technical consultancy in the field of design and inspection services relating to chimney flues and installations for conveying exhaust gases, namely, away from industrial furnaces and boilers; customer service, namely, technical consultancy in the field of design and inspection services relating to air preheaters and gas-gas heaters for gas processing including use in thermal power generation facilities and industrial plants, including rotary regenerative heat exchangers not being parts of machines and heat exchangers not being parts of machines for chemical plants; customer service, namely, technical consultancy in the field of design and inspection services relating to flat and profiled heat exchanger panels; customer service, namely, technical consultancy in the field of design and inspection services relating to coolers, namely, those used in industrial chemical or materials processing applications; customer service, namely, technical consultancy in the field of design and inspection services relating to heat exchangers not being parts of machines; customer service, namely, technical consultancy in the field of design and inspection services relating to convection recuperators for chemical processing and other industrial processing applications; customer service, namely, technical consultancy in the field of design and inspection services relating to thermal oxidizers for use in industrial plant; customer service, namely, technical consultancy in the field of design and inspection services relating to systems consisting of heat exchangers and process gas coolers for the heat transfer for petrochemical chemical am metallurgical production processes, namely, process gas coolers not being part of machines in the nature of transfer line exchangers and steam generating heat exchangers not being part of machines used in gasification processes; customer service, namely, technical consultancy in the field of design and inspection services relating to waste heat steam generators and high temperature heat exchangers not being parts of machines; customer service, namely, technical consultancy in the field of design and inspection services relating to steam generator system consisting primarily of steam generators for processing gas and heat recovery in steam reforming manufacturing processes, heat recovery in chemical and metallurgical manufacturing processes, heat recovery processes after partial oxidation; customer service, namely, technical consultancy in the field of design and inspection services relating to heat recovery downstream system comprised primarily of heat exchangers not being part of machines used to assist ammonia combustion in nitric acid and caprolactam manufacturing processes; customer service, namely, technical consultancy in the field of design and inspection services relating to heat recovery steam generators in fire tube, water tube and double tube design for chemical metallurgical and glass technological manufacturing processes; customer service, namely, technical consultancy in the field of design and inspection services relating to heat recovery steam generators for the utilization of gas turbine heat; customer service, namely, technical consultancy in the field of design and inspection services relating to industrial flash dryers for dehydrating solid particles; customer service, namely, technical consultancy in the field of design and inspection services relating to mechanical separators for removing solid particles from air; customer service, namely, technical consultancy in the field of design and inspection services relating to industrial dryers for materials and food processing plants not being parts of machines; customer service, namely, technical consultancy in the field of design and inspection services relating to industrial coolers for materials and food processing plants not being parts of machines; customer service, namely, technical consultancy in the field of design and inspection services relating to industrial calciners, namely, limestone calcination machines; customer service, namely, technical consultancy in the field of design and inspection services relating to kilns for industrial purposes; customer service, namely, technical consultancy in the field of design and inspection services relating to heat exchangers as parts of a steam generator system for heat recovery from manufacturing processes in the chemical petrochemical metallurgical or glass industry or for heat recovery in power stations; customer service, namely, technical consultancy in the field of design and inspection services relating to high temperature preheaters as parts of a steam generator system for air, gaseous or liquid substances for chemical am metallurgical manufacturing processes or glass manufacture; customer service, namely, technical consultancy in the field of design and inspection services relating to recuperators as parts of a steam generator system for use in the metallurgical industry, on melting furnaces or mineral wool production, chemical or petrochemical manufacturing processes, or on fluidized bed furnaces for sludge combustion; customer service, namely, technical consultancy in the field of design and inspection services relating to thermal post-combustion furnaces for dust-laden gases, blast furnaces gas containing C02 or exhaust air containing solvents downstream of various manufacturing processes, and heat exchangers as parts of a steam generator system for air or fuel preheating, and heat exchangers as parts of a steam generator system for the recovery of gas turbine waste heat