6
Articles of common metal for use in the oil and gas industry; pipes, tubes, pipelines, risers, flowlines and coils; pipelines for the transport of fluids, slurries, petroleum, oil, gas and multiphase flows; guides; baffles; parts and fittings for the aforesaid goods; all formed wholly or predominantly of metal
7
Machines for use in the oil and gas industry and parts and fittings therefor; separators; tubes, pipes, liners, coils, flow conditioners, baffles and guides, all being parts of machines; oil drilling rigs and their components; machines for extraction and transportation of oil and gas, and parts and fittings therefor; apparatus and installations for the extraction and production of oil and gas; upstream pre-processing apparatus and installations for the production of oil and gas; pipes, tubes, pipelines, risers, flowlines, liners, coils, flow conditioners, baffles and guides, all for oil and gas extraction, production and pre-processing apparatus and installations; Apparatus and installations for the extraction and production of oil and gas; upstream pre-processing apparatus and installations for the production of oil and gas; pipes, tubes, pipelines, risers, flowlines, liners, coils, flow conditioners, baffles and guides, all for oil and gas extraction, production and pre-processing apparatus and installations
11
Separators (not being machines); flow conditioners
17
Flexible or semi-rigid pipes, tubes, pipelines, risers, flowlines and coils; synthetic liners for pipes, tubes, pipelines, risers, flowlines and coils; parts and fittings made from rubber, plastic or synthetic materials for use in the oil and gas industry