Steel pipes; steel wire; steel; steel sheets; frames of metal for building; metal pipes and tubes; metallic materials for exclusive use in building or construction, namely, framework of metal for building, girders of metal, beams of metal, brackets of metal for building, metal reinforcement materials for buildings, metal building fascia, metal building panels, metal building flashing, metal staircases, metal doors, metal windows, metal ceiling panels and tiles; building materials of metal, na...