Metal building materials, namely, metal building materials for temporary, portable, modular, pre-fabricated and permanent buildings, enclosures, booths, crash barriers, sheds, barns, stables, greenhouses, gazebos, shelters, swimming pools, bridges, platforms, stages, bouys, jetties, marinas, floating docks and pontoons, namely, supports of metal, panels of metal in the nature of door, floor, ceiling, roofing, wall, and fencing panels, beams of metal, struts of metal, building frames of metal,...