06
Junctions of metal for pipes; pipes and tubes of metal;
tubes of metal; fittings of metal for compressed air ducts;
fittings of metal for pipes; metal hose fittings; pipe
fittings [junctions] of metal; metal tubes for gas; pipe
unions of metal; couplings of metal for tubing; metal tubes
for industrial use; metal pipes for liquid and gas transfer;
pipes, tubes and hoses, and fittings therefor, including
valves, of metal; flap valves of metal; metal valves for
controlling the flow of fluids in pipelines; metal valves
for controlling the flow of gases in pipelines
07
Regulators [parts of machines]; valves [mechanical] for
regulating fluid flow; pressure controllers [valves] being
parts of machines; level regulating valves [parts of
machines]; safety valves [parts of machines]; metal safety
valves [parts of machines]; shutter valves being parts of
machines
09
Solenoid valves for regulating the flow of gases and
liquids
11
Pressure controllers [regulators] for gas pipes; safety
valves for gas pipes; pressure relief valves [safety
apparatus] for gas pipes; safety fittings for gas pipes;
regulating and safety accessories for gas pipes; pressure
supervision apparatus [safety apparatus for gas pipes];
safety accessories for water or gas apparatus and pipes;
stop valves for regulating gas
37
Extraction of oil; mining extraction; oil drilling; oil
pumping; gas drilling
39
Transport by pipeline; transport of gas by pipeline
42
Civil engineering; engineering consultancy services;
engineering services for the gas industry; civil engineering
consultancy; provision of technological consultancy for the
oil refining industry; engineering services relating to
energy supply systems; engineering services in the field of
energy technology; engineering services relating to gas
transport and supply systems
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