Electric compressor machines; sealing joints in the nature of mechanical seals being parts of machines; mechanical seals being machine parts; joints for metal tubes being parts of machines; valves being parts of machines; bearings as parts of machines; slide bearings as parts of machines; gears, other than for land vehicles; planetary gear motors; gear motors other than for land vehicles; hydraulic actuators; rotary actuators; actuators for valves; actuators for mechanisms; electrical engines, other than for land vehicles; current generators; venturi scrubbers being parts of machines; motorized fans for machines; heat exchangers being parts of machines; heat insulated metal pipes being parts of machines; catalytic converters; heat recovery devices, namely, heat recovery ventilators, being parts of machines; waste gas conduits, namely, electric power generators using waste heat as parts of machines; filters being parts of machines and engines; printing cylinders for machines; electric pump machines; exhaust silencers for motors, engines, and furnaces; gas turbines, other than for land vehicles; sewage pulverizers being machines; spraying machines; powder handling apparatus in the nature of powder coating spray guns being machines; turbogenerators; vibrating screen separators being machines; centrifugal separators for liquid solutions; turbine vanes being parts of gas turbine engines; pressure regulators being parts of machines

Distance measuring apparatus; signaling apparatus, namely, programmable logic controllers and field devices in the nature of electronic sensors; measuring instruments, namely, voltage, amperage, vibration, rotary speed, pressure, temperature, flow, difference pressure, and level measuring instruments, not for medical purposes; heat regulating apparatus, namely, electronic control devices for heating and energy management; boiler control instruments; optical measurement apparatus, namely, lasers and infrared measurement apparatus being infrared detectors; solenoid valves being electromagnetic switches; electrical reactors; commutators; transmitters of electronic signals; pressure gauges; high pressure manometers; range sensors; thermocouples; temperature indicators; temperature switches; thermometers not for medical purposes; infrared thermometers not for medical purposes; revolution counters for motors; vibration gauges; vibration sensors for installation in windmill housings; flowmeters; electrical transformers for electricity; flame sensors; flame monitors; gas flow monitors; fire detectors; piezoelectric igniters in the nature of electric igniters used in connection with ballasts to start discharge lamps; electronic displays, namely, digital signage; electrical frequency transformers; optical lenses; electrical switch cabinets; cables, electric; electric sockets, electric plugs and other electrical contacts for enabling connection and disconnection of power and control cables; recorded and downloadable computer software for control and surveillance of energy conversion apparatus; software for engineering, design and construction of energy conversion apparatus; software for design, control and surveillance of energy converting systems; software for regulating energy conversion apparatus, energy converting systems, motors and generators; software for controlling gas and liquid flows, for controlling gas burners and for controlling heat exchangers in the field of energy conversion and energy storage; gas sensors for measuring gas concentration; process controlling software; electric light dimmers; energy regulators in the nature of voltage regulators; thermal controls for warming and cooling equipment and instruments

Refrigerating apparatus being appliances and installations; steam generating apparatus being steam generators; air purifying apparatus and machines; heating apparatus, namely, heat exchangers not being parts of machines, boilers, gas-fired boilers, combustion chambers; fans for air-conditioning; refrigerators; air cooling apparatus; air handlers; air purifying apparatus; air cleaning apparatus in the nature of air cleaning units; air humidifying installations; gas purification installations; air heating installations; heat regenerators; gas cleaners being gas scrubbers and purifiers; water purification units; water softening apparatus and installations; lighting apparatus in the nature of electric lighting fixtures and lighting installations; heating apparatus being thermal oil heaters, electric gas space heaters, and heating installations; heat generators, namely, combined heat and power gas turbines, furnaces, and combustion chambers; heat regulating devices in the nature of valves being parts of heating installations; heat accumulators; storage heaters; water regulating apparatus, namely, pumps and valves for plumbing and water cooling installations; heat exchangers, other than parts of machines; air filters for industrial installations; dust filters for air conditioning; water filters; air filtering installations; thermal incineration installations being thermal oxidizers for industrial air pollution control; gas burners; combustion chambers; chimney extractors being ventilating exhaust fans; drying apparatus and installations for use in heating ventilation systems, geothermal heating systems, and gas purification systems; electric air driers; dehumidifiers; taps being faucets and pipe line spigots; taps being faucets; flues and installations for conveying exhaust gases, namely, chimney flues, ventilating exhaust fans and flue pipes for heating installations; heat exchangers for the removal of condensate, other than parts of machines; heat exchangers for the removal of exhaust gases, other than parts of machines; evaporators for heating installations; separators for scrubbing gas

Repair of industrial furnaces; servicing of industrial boilers by cleaning and repairing; servicing of pipelines in the nature of maintenance and repair; maintenance and repair of combustion and gas turbine engines; maintenance and repair of pipes used in industrial equipment; maintenance and repair of solid fuel boilers; maintenance, servicing by cleaning, and repair of power generating apparatus and installations; installation of apparatus for air-conditioning; installation of security systems; installation of communications network equipment; installation of instrumentation systems in the nature of exhaust gas aftertreatment installations, gas purification installations, air purification installations, heat exchanger installations, heat recovery installations, steam generating installations; installation of apparatus for ventilating; installation of energy-saving apparatus in the nature of energy generation equipment; installation of hydraulic equipment; installation of environmental protections systems in the nature of air purification systems, gas purification systems, and waste heat recovery systems; installation of plumbing; installation of apparatus for heating; installation of industrial plant; installation of dust extraction apparatus; installation of industrial machinery; installation, repair and maintenance of steam condensers; installation, repair and maintenance of air reheaters; installation, repair and maintenance of boiler tubes; installation of pipe systems for conducting of steam; installation of pipe systems for conducting of liquids; services for the repair of heat exchangers; repair of turbines

Engineering services in the fields of environmental engineering, geothermal engineering, plant construction engineering, exhaust gas purification, electricity generation, and renewable energy; provision of surveys in the nature of surveying for scientific purposes; conducting engineering surveys; scientific research and also preparing related reports; surveying; civil engineering planning consultancy services; conducting technical research project studies in the fields of exhaust gas purification, electricity generation, geothermal energy, solar energy, heat recovery and heat exchange, and renewable energy; measurement services, namely thermal energy, electrical energy, and gas purification measurement services, namely, thermal energy usage and electrical energy generation; computer engineering consultancy services; software creation in the nature of design and development of computer software; computer software design; software engineering in the nature of computer software design and development; technical design and design planning of water purification plants; environmental testing of exhaust emissions; development of computer programs; computer software development; installation of computer software