Common metals, unwrought or semi-wrought; steel, unwrought or semi-wrought; common metals in powder form for use in manufacturing; aluminium; alloys of common metal; steel alloys; building materials of metal, namely, soffits, fascia and siding; reinforcing materials of metal for building; joists of metal; building boards of metal, namely, ceiling boards and floor boards; steel plates; steel sheets; poles of metal; construction materials, namely, metal sheet piles; steel bars; sheet metal bars...