Fittings of metal for furniture; Hardware, namely, metal brackets for general use; Junctions of metal for pipes; Mechanical fastening elements of metal; Metal clamps; Metal fasteners, namely, bolts, nails, rivets and screws; Metal hose clamps; Metal pipe connectors; Metal pipe fittings for compressed air pipes; Metal pipes and metal fittings therefor; Valves of metal, other than parts of machines