11
Taps [faucets]; Control fittings; Taps and fittings; Control ball valves; Shut-off ball valves; Safety shut off valves; Revolvable valves; Steam desuperheaters; Ring coolers; Steam reduction valves; Ash discharge valves
37
Installation, repair and maintenance of industrial installations and components therefor in the field of energy production, oil and gas transport, petrochemicals and the metal and mineral industry; Installation, repair and maintenance of natural gas regulation and compression installations, natural gas caverns and natural gas storage installations, gas treatment installations and components therefor
42
Technical examination of fittings, control fittings, shut-off fittings, control ball valves, shut-off ball valves, safety shut-off valves, rotary valves, steam coolers, ring coolers, steam reduction valves and ash discharge valves; Technical design of fittings, control fittings, shut-off fittings, control ball valves, shut-off ball valves, safety shut-off valves, rotary valves, steam coolers, ring coolers, steam reduction valves and ash discharge valves; Technical planning of fittings, control fittings, shut-off fittings, control ball valves, shut-off ball valves, safety shut-off valves, rotary valves, steam coolers, ring coolers, steam reduction valves and ash discharge valves; Technical consultancy relating to industrial installations and components therefor in the field of energy production, oil and gas transport, petrochemicals and the metal and mineral industry; Technical consultancy relating to natural gas regulation and compression installations, natural gas caverns, natural gas storage installations and gas treatment installations; Engineering in the field of energy production, oil and gas transport, petrochemicals and the metal and mineral industry; Engineering in relation to natural gas regulation and compression installations, natural gas caverns, natural gas storage installations and gas treatment installations