[Class : 6] Elbow Outlets Of Metal; Elbows For Pipes Of Metal; Elbows Of Metal For Connecting Gas Piping To Gas Appliances; Caps Formed From Metal; Cap Closures Of Metal; Sealing Caps Of Metal; Joints For Pipes (Metal ); Couplings [Joints] Made Of Metal For Pipes; Metal Flanges; Metal Pipe Fittings; Pipes, Tubes And Hoses, And Fittings Therefor, Including Valves, Of Metal; ...