Ores of non-precious metal; common metals and their alloys and semi-finished products made of these materials, namely, metal nuts, screws, bolts, and nails; irons for construction, namely, iron, unwrought or semi-wrought; mats and stirrups of common metals for buildings in the nature of metal reinforcement materials for building; common metals in the form of plate for use in building construction, billet, stick for use in building construction, profile for use in building construction, sheet ...