Metal pipe connectors; Angle irons of metal; Metal fence wire strainers; Metal clamp-type fasteners for holding in place curtains, tarps, canvas, cloth and film covering material; Metal hose clamps; Metal pipes and metal fittings therefor; Pipe coupling of metal; Metal thread adapters for use with hydraulic and pneumatic systems; Metal hoses for agricultural use; Crampons; Shoe pegs of metal; Metal casters; Metal elbows for pipes; Water-pipe valves of metal; Brass alloys; Metal fittings for c...