Common metals and their alloys; Unwrought or semi-wrought common metals and their alloys used in the metal building materials industry; metal valves not being parts of machines, metal flanges, and metal clack valves not being parts of machines for industrial tap systems and pipelines for transporting fluids or gas; non-automatic fueling nozzles, metal pipe connectors, metal expanding sleeves for affixing screws for industrial tap systems and pipelines for transporting water, fluids or gas, except parts of machines; Apparatus, machines and installations for transporting and distributing water and liquid or gaseous fluids, namely, metal fittings for gas, petroleum and water pipes; All the aforesaid goods being exclusively for the oil and gas industry

Valves being parts of machines, clack valves being parts of machines, taps of metal being parts of machines for industrial tap systems and pipelines for transporting water, fluids or gas, pressure or flow regulators; All the aforesaid goods being exclusively for the oil and gas industry

Apparatus, machines and installations for transporting and distributing water and liquid or gaseous fluids, namely, control valves and pressure relief valves for regulating the flow of gases and liquids; All the aforesaid goods being exclusively for the oil and gas industry

Apparatus, machines and installations for transporting and distributing water and liquid or gaseous fluids, namely, safety accessories for gas pipes in the nature of reverse flow check valves and cooling installations for water; All the aforesaid goods being exclusively for the oil and gas industry; Taps of metal for pipes and pipelines being parts of sanitary installations for transporting fluids

Apparatus, machines and installations for transporting and distributing water and liquid or gaseous fluids, namely, non-metal fittings for gas, petroleum and water pipes; All the aforesaid goods being exclusively for the oil and gas industry

Treatment of metal materials by chemical or mechanical processes of all kinds, exclusively for the oil and gas industry