Elbows of metal for pipes; Elbows of metal for pipes including those from alloy steel and titanium; Metal elbows for pipes; Metal pipe fittings; Metal pipe fittings for compressed air pipes; Metal pipes; Metal valves not being parts of machines; Metal clad pipes; Metal elbows for pipes; Metal expanding sleeves for affixing screws; Metal junction sleeves for non-electric cables; Metal junctions for pipes; Metal key rings; Metal rings for fastening pipe rings; Ring-shaped fittings of metal; Cab...