Andirons; Branching tubes of metal for pipelines; Copper alloys; Fittings of metal for pipes; Junctions of metal for pipes; Junctions of metal for pipes including those from alloy steel and titanium; Manifolds of metal for pipelines; Manually operated metal valves; Metal elbows for pipes; Metal expansion joints for piping and ducting; Metal hoses for plumbing use; Metal junctions for pipes; Metal pipe connectors; Metal pipe couplings and joints; Metal pipe fittings