Irons and steels; nonferrous metals and their alloys; Ores of metal, namely, zinc ores, antimony ores, chrome iron ores, cobalt ores, tin ores, bismuth ores, tungsten ores, iron ores, copper ores, lead ores, nickel ores, manganese ores, and molybdenum ores; metal materials for building or construction, namely, chimney shafts, stair treads, fasteners for casement windows, guardrails, wall linings, pilings, gratings, tunneling materials in the nature of ceiling supports, fences, shutters, water...