Bolt snaps of metal; Door fittings of metal; Elbows of metal for pipes including those from alloy steel and titanium; Fittings of metal for flexible pipes; Fittings of metal for rigid pipes; Junctions of metal for pipes including those from alloy steel and titanium; Metal conduit; Metal couplings for use with hydraulic and pneumatic systems; Metal junctions for pipes; Metal pipe connectors; Metal pipe couplings and joints; Metal thresholds; Metallic pipes; Pipes and tubes of metal; Valves of ...