6 unwrought and partly wrought metals and alloys thereof in the form of bars; structural steel frames for complete stand alone buildings; structural steel frames for walls, floors and roofs; metallic partitioning comprised of a metal frame with plasterboard lining; metal and metal alloys for use in buildings, namely, plates, strips, sheets, coils, rods, bars and billets; metal builders' hardware, namely, angles, connecting clips, nuts, bolts, cleats, screws, studs, channels, angles, stud partitions, brackets, anchors, nails, plugs, clips, beads, and hinges; metal building materials, namely, profile metal sheathing, metal cladding and metal panels for ceilings