Metal pipe connectors; Pipe coupling of metal; Water-pipe valves of metal; 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 pipes and metal fittings therefor; Metal hose clamps; Metal elbows for pipes; Hardware, namely, metal tacks; Metal anchor bolts; Pipe elbows of metal; Metal couplings and joints for pipes; Metal fittings for compressed air lines; Brass alloys; Metal casters; ...