6 Building materials of metal, namely, awnings of metal and reinforcing materials of metal for building; common metals and their alloys; metal products not comprised in the other classes, namely, buildings transportable, of metal, building materials of metal being fascia, pipework of metal; junctions of metal for flexible composite pipes and pipes partly made of metal for transport and transmission of fluids, including petroleum and natural gas, also water, hydraulic fluid, electrical signals and/or electrical power; metal products for use in drilling and completion of oil and gas wells and the production of oil and gas from wells, namely, metal pipe couplings and joints for well heads, Christmas trees being manually operated metal valves, manually operated metal valves, metal pipe risers, metal pipe fittings being riser couplings, metal pipeline couplings, sections being junctions of metal for pipes for repairing pipelines, metal couplings for connecting pipes or tubes, metal pipe connectors, high pressure metal lead seals for metal pipe connections, manually operated metal valves for geothermal well heads, subsea metal pipe connectors, wellhead connectors being structure joint connectors of metal, metal test plugs for subsea wellheads, metal tubing hangers, casing hangers of metal, seal assemblies being sealing alloys, metal caps for tubing ends, metal crown plugs, metal casing and tubing heads, metal adapters for use with oil and gas well drilling systems, spacer spools, metal flange to connectors, threaded metal pipe connectors, and metal valve removal plugs; washout pipe support sleeves of metal, metal water pipes; wellhead valves of metal, other than parts of machines; adjustable wellhead manually operated valves of metal; subsea wellhead manually operated valves of metal; surface wellhead manually operated valves of metal; exploration wellhead manually operated valves of metal; tie-back structure joint connectors of metal; high pressure and high temperature tie-back structure joint connectors of metal; metal casing pipe connectors in oil and gas wells; subsea wellhead temporary abandonment metal caps for wellhead ends; metal pipe connectors; metal suspension clamps for oil and gas wells; Metal pipe couplings and joints for conversion wellhead for oil and gas wells; tie back pipe connectors of metal; wellhead trees, namely, metal valves, other than parts of machines; wellhead dry trees, namely, metal valves, not being part of machines; building materials of metal, namely, wellhead wet trees being metal valves, not being part of machines, well tubulars, metal sheet templates, wellhead metal couplings for pipes, manifold structures of metal for pipelines; reinforcement material of metal for pipes; non-electric cables and wires of common metal; metal pipes, parts for metal pipes being metal pipe couplings and joints, metal piping, lead seals being sealing caps of metal, underwater metal couplings for pipes, and parts and fittings therefor in the nature of junctions of metal for pipes; metal valve blocks not being parts of machines