HELIXSTEM

metal tubes for industrial use; metal pipes for liquid and gas transfer; pipes, tubes and hoses, and fittings therefor, namely, valves not being parts of machines, of metal; flap valves not being parts of machines of metal; metal valves not being parts of machines for controlling the flow of fluids in pipelines; metal valves not being parts of machines for controlling the flow of gases in pipelines

Regulators being parts of machines; mechanical valves for regulating fluid flow; pressure controllers valves being parts of machines; level regulating valves being parts of machines; safety valves being parts of machines; metal safety valves being parts of machines; shutter valves, being parts of machines; pressure regulators being parts of machines

Pressure controllers being regulators for gas pipes; safety valves, namely, reverse flow check valves for gas pipes; pressure relief valves as safety apparatus for gas pipes; safety fittings, namely, flashback arrestors for gas pipes; regulating and safety accessories for gas pipes, namely, gas regulators; pressure supervision apparatus as safety apparatus for gas pipes, namely, pressure regulators for gas installations; safety accessories, namely, regulating accessories for water or gas apparatus and pipes; stop valves, namely, reverse flow check valves for regulating gas; gas regulators

Civil engineering; engineering consultancy services; engineering services for the gas industry; civil engineering consultancy; provision of technical consultancy to the oil refining industry in the field of environmental science, environmental engineering, oil well testing; engineering services relating to energy supply systems; engineering services in the field of energy technology; engineering services relating to gas transport and supply systems