6
Couplings and joints of metal for pipelines; Expansion joints of metal for pipelines and ducts; Metal tubes and pipes; Pulleys, Springs and Valves of metal; Hand-operated valves of metal; Pulleys, springs and valves of metal (other than parts of machines); Hand-operated valves of metal (other than parts of machines); Valves of metal, other than parts of machines, including those of steel alloys and titanium
7
Electric motors, hydraulic motors, submarine motors; Hydroelectric installations for the production of electricity; Valves; Dosing valves; Pump control valves; Pressure valves [parts of machines]; Dosing valves (parts of machines); Valves (parts of pumps); Control valves for regulating the flow of gases and liquids; Control valves for regulating the flow of gases and liquids (parts of machines); Machinery and Apparatus for use in mining; Hydraulic valve actuators
9
Instruments for measuring resistance; Fire control systems; Software for monitoring industrial processes; Electric and electronic apparatus for the checking (supervision); Measuring, checking (supervision) apparatus and instruments; Electric checking (supervision), testing and monitoring apparatus; Control panels for security alarms; Electronic equipment for remote control of signals; Machines and equipment for distributing or monitoring energy, None of the aforesaid goods including electric batteries of any kind
37
Installation of oil production apparatus; Construction of structures for the production of natural gas; Installation of equipment for generating electricity; Installation, maintenance and repair of apparatus for generating electricity; Maintenance of equipment and installations for generating electricity; Overhaul of equipment and installations for generating electricity; Repair of equipment and installations for generating electricity; Repair of installations and machinery for producing biogas; Repair of installations and machinery for generating energy; Repair of installations used in the production of metal, processing of metal and metalworking; Installation, maintenance and repair of equipment for generating electricity; Maintenance, overhaul and repair of equipment and installations for generating electricity; Installation, construction, maintenance, overhaul and repair of equipment, apparatus and installations for generating energy and electricity; Construction of structures for the storage of natural gas; Construction of structures for the storage of natural gas; Construction of structures for the transportation of natural gas; Installation of equipment for distributing and supplying gas; Installation, maintenance and repair of gas and electricity systems; Emergency repair of gas supply equipment; Repair and maintenance of gas and electricity installations; Rental of oil well drilling tools; Construction of pipelines for oil; Installation of pipelines for gas and water; Installation of hydraulic pipelines; Installation of water pipelines; Installation, repair, maintenance, replacement and renovation of pipelines; Installation, maintenance and repair of lines, fire hoses and high pressure pipelines, repair or maintenance of chemical installations; Overhaul, cleaning and repair of chemical equipment; Repair or maintenance of chemical processing machines and apparatus; Maintenance services; Installation and maintenance services; Installation maintenance and repair services; Consultancy in relation to installation, maintenance and repair services; Installation of security systems
42
Engineering for the gas industry; Design and technical planning of heating installations; Engineering in relation to installations for providing energy; Engineering in relation to installations for providing and transportation of gas; Technical design in relation to refrigerating devices and installations; Technological consultancy in the field of generation of energy from alternative sources; Technological consultancy services in the field of generation of energy from alternative sources; Technical analysis; Laboratory testing services; Scientific laboratories, technical measurement services; Technical testing and quality control; Engineering and chemistry services; Technological services and research and design relating thereto; Engineering in relation to energy technology; Laboratory services relating to technical measurements and testing; Research and engineering design in relation to drilling technology; Material testing; Visual design; Engineering design; Analysis and evaluation of product design; Design of machines, apparatus and instruments; Design and development of computer software for process control