Industrial machinery and machine tools, namely, air condensers, water condensers, namely, mechanical condensators, de-aerators for feed water, steam separators, feed water pumps, extraction pumps for extracting condensate for condensers; motors and engines, except for land vehicles; fans for motors and engines, motors and engines for fans and for air-conditioning apparatus and installations; heat exchangers being parts of machines; filters being parts of machines or engines; motors and engines, and component parts sold as a unit and replacement parts for electrostatic dusting apparatus; motors and engines, machines and parts of apparatus and installations for desulphurization of flue gases; motors and engines, and component parts sold as a unit and replacement parts for apparatus, devices and installations for eliminating the main pollutants from thermic processes, such as acid constituents, organic constituents, nitrogen oxides, dust and heavy metals

Lighting, heating, steam-generating apparatus, namely, heat generators, water heaters, apparatus for refrigerating, namely, cooling domes, water distribution apparatus and sanitary installations, namely, water purifying units; water desalination plants; cooling appliances and installations, namely, steam accumulators, air conditioning apparatus for separating water droplets from gas streams, steam super heaters being steam heating apparatus; water cooling towers; distillation apparatus not for scientific purposes; heat exchangers not being parts of machines; air-conditioning apparatus and installations; fans for air conditioning apparatus; electrostatic dusting apparatus, namely, electrostatic precipitators; apparatus and installations for desulphurization of flue gases, namely, wet, dry, semi-dry and seawater-based desulfurization flue gas scrubbing apparatus; apparatus and installations for air purification purposes, namely, fabric filters, cyclones being air purifying apparatus, gas scrubbers and related dedusting equipment being air purifying apparatus; air filtering installations; filters for air-conditioning apparatus and installations; filters for cooling apparatus and installations; apparatus for gas purification purposes, namely, gas scrubbers; air filters for industrial installations; apparatus, devices and installations for eliminating the main pollutants from thermic processes, such as acid constituents, organic constituents, nitrogen oxides, dust and heavy metals, namely, electrostatic precipitators, fabric filters for use with industrial machines, cyclones being air purifying apparatus, gas scrubbers for the removal of nitrogen oxides (NOx) with selective catalytic reduction (SCR) and selective non-catalytic reduction (SNCR) processes, and gas scrubbers for the removal of sulfur oxides (Sox), dioxins, heavy metals and other pollutants

Repair and maintenance of constructions, namely, maintenance and repair of buildings and water distribution installations; assembling, cleaning, servicing and repairing heating installations, assembling, cleaning, servicing and repairing ventilating installations, assembling, cleaning, servicing and repairing air-conditioning installations, assembling, cleaning, servicing and repairing refrigerating installations, assembling, cleaning, servicing and repairing thermal exchangers, assembling, cleaning, servicing and repairing cooling installations, assembling, cleaning, servicing and repairing cooling towers; repair or maintenance of construction machines and industrial machines; rental of construction machines and tools; turnkey construction of cooling installations and cooling towers; assembling, cleaning, servicing and repairing apparatus, devices and installations for eliminating the main pollutants from thermic processes

Construction drafting; advice on construction work, namely, drafting of plans and engineering drawings for others and consulting in the field of construction, thermal exchangers, cooling installations and cooling towers design; construction drafting in connection with assembling thermal exchangers, cooling installations and cooling towers; construction advice in connection with assembling thermal exchangers, cooling installations and cooling towers; architectural services, chemist services, physicists services, engineering and land surveying; computer programming; drawing up of expert reports by engineers or laboratories; technical consultancy services in connection with civil engineering; material testing; thermic performance testing; inspection services and quality control for heating, ventilation and refrigeration installations, thermal exchangers, cooling installations, cooling towers and devices and installations for eliminating pollutants from thermic processes; technical project studies and technical project management for designing and restoring the quality of cooling towers, cooling installations, systems for controlling air pollution, heat exchangers and devices and installations for eliminating pollutants from thermic processes; conducting feasibility studies in connection with constructing, assembling and restoring cooling towers, cooling installations, systems for controlling air pollution and devices and installations for extracting pollutants from thermic processes; engineering; conducting analysis and research in connection with controlling air pollution and cooling; design and testing of new products for others, namely, installations for eliminating the main pollutants from thermic processes and engineering work in connection with these installations; scientific research in connection with cleansing of thermic processes; technical advice and surveying in connection with installations for extracting pollutants from thermic processes; technical advice provided by engineers, concerning automation production functions in industrial processes; technical advice in connection with operating, managing and supervising industrial installations for treating and purifying liquids and gases and for eliminating pollutants; technical advice for optimization of the performance of thermic equipment