Common metals, unwrought or semi-wrought, and their alloys; Non-electric cables of metal; metal tubes; non-electric metal cables and wires; non-electric metal cables, wires, pipes, and tubes with a filling; metal tubes and pipes; iron ores; rolled and cast construction materials, namely, iron and steel pipes and bars; metal building materials, namely, steel pipes and bars; steel; aluminum; iron, unwrought or semi-wrought; lead, unwrought or semi-wrought; chromium; manganese metal and ferro-ma...