Flanges of metal; pipe elbows of metal; reducers of metal in the nature of metal pipe fittings; caps and saddle connections from metal in the nature of metal pipe couplings and metal pipe joints; T pieces of metal in the nature of metal pipe fittings; crosspieces of metal in the nature of metal pipe couplings and metal pipe joints; long weld necks of metal in the nature of flanges; construction steels; fine-grained construction steels; heat-treatable steels; steel alloys; unalloyed steels; stainless steels; duplex steels; aluminum alloys; titanium; common metals and their alloys; metal building materials, namely, sheets, slabs, pipes; transportable buildings of metal; materials of metal for railway tracks; nonelectric cables and wires of common metal; ironmongery, namely, small items of metal hardware in the nature of couplings, crosses; pipes and tubes of metal; safes; goods of common metal, namely, flanges, fittings for pipeline construction, power plants, vessels, oil and gas extraction, oil and gas processing, heating and plumbing and pipe connectors; metal ores; none of the foregoing including metal fasteners, threaded fasteners, bolts, screws, and washers