CSEAL

Couplings of metal for piping; couplings of metal for tubes; fittings of metal for pipes; metal gas pipe parts; metal pipes for liquid and gas transfer; pipe fittings [junctions] of metal; regulating valves of metal, other than parts of machines; valves of metal, other than parts of machines

Pressure regulators (parts of machines)

Mining services; oil drilling services; oil pumping; gas drilling

Transport by pipeline; pipeline transport of gases; pipeline transport of liquids

Civil engineering; engineering consultancy services; engineering services for the gas industry; engineering services in the field of electrical power and natural gas production; engineering services relating to gas transport and supply systems