Branching pipes of metal; Branching tubes of metal for pipelines; Connectors of metal for pipes; Corrosion-resistant metal overlays and alloys for fittings, steel plates, flanges, piping components; Couplings and joints of metal for pipes; Drain pipes made of metal; Elbows of metal for pipes; Fittings of metal for pipes; Junctions of metal for pipes; Manually operated metal valves; Metal valves not being parts of machines; Stainless steel; Stainless steel pipes; Stainless steels; Tubes of sta...