Metal hardware, namely, screws, nails, washers; Building and construction materials and elements of metal namely, metal window frames, flashing of metal for building, linings and brackets of metal; Metal shelter structures and transportable buildings of metal; Prefabricated metal buildings; Portable buildings made primarily of metal; Pre-fabricated and modular metal stables; Metal modular portable building structures; Modular portable buildings of metal; Modular metallic structures, namely, b...