Fittings of metal for compressed air hoses; Fittings of metal for pipes; Metal adapters for use with hydraulic and pneumatic systems; Metal bottle caps; Metal elbows for pipes; Metal fuel oil hoses; Metal hose fittings; Metal joinery fittings; Metal pipe couplings and joints; Metal pipes and metal fittings therefor; Metal plugs; Plating compositions composed of metal; Self-tapping bushings of metal; Stainless steels; Valves of metal, other than parts of machines