metal which is forged, rolled, galvanized, polished, milled and extruded, namely alloys used for casting, anvils, bars for further manufacture, bolts, boxes, brazing rods, alloys sold in bulk, cable clips and wires, binding screws of metal for cables, non-electric cables, casters, castings, chains, chests, clamps, containers for the storage and transportation of goods, pipes and fittings therefor, gratings; and metal rails