Green steel; steel pipes; construction materials, namely, metal piles in the nature of steel sheet piles; steel plates; metal sheets and plates, namely, steel in the form of sheets, sheet metal, containers of metal, floors of metal, poles of metal, roofing of metal; steel wire; iron, unwrought or semi-wrought; steel; special metal materials for building and construction, namely, metal reinforcement materials for building, metal building flashing, refractory construction materials of metal, pi...