Butt weld pipe fittings of metal; Compressed air pipe fittings of metal; Metal pipe fittings; Pipe fittings (junctions) of metal; Stainless steel pipe fittings (other than fitted parts of machines); Adaptors for pipes (metal); Bend pipes of metal; Branching pipes of metal; Cast iron parts for pipes (other than parts of machines or sanitary installations); Clamp connectors of metal for pipes (other than parts of machines); Clamps of metal for pipes (other than parts of machines); Connection pipes of metal (parts of machines); Connectors of metal for pipes; Copper pipes (other than parts of machines); Couplings (joints) made of metal for pipes; Couplings of metal for flexible pipes; Couplings of metal for pipes; Covers of metal for use in pipeline channels; Elbows of metal for pipes; Fastening collars of metal for pipes and tubes; Fittings of metal for pipes; Flexible metal pipes (other than parts of sanitary installations); Junctions for pipes of metal; Machine couplings (pipe) of metal; Manifolds of metal for pipelines; Metal clamps for fastening pipes; Metal joint connectors for pipes; Metal pipes (other than parts of machines, engines or sanitary installations); Metal pipes for building purposes; Metal pipes for use as roof drainage installations; Metal valves for controlling the flow in pipelines; Metal valves for water pipes; Pipe clamps of metal; Pipe clips of metal; Pipe connections of metal; Pipe couplings of metal; Pressure pipes of metal, other than parts of machines; Rigid pipes of metal (building); Seals of metal for pipes; Seamless metallic pipes (other than parts of sanitary installations); Sewer pipes of metal; Steel pipes; Water pipe valves (metal); Water pipe valves of metal; Water regulating valves (metal) for water pipes; Water-pipe valves of metal