6 Non-precious mineral ores, namely, chromes ores, ores of metal, galena ores, zirconium ores, zinc ores, iron ores, copper ores, cobalt ores, chrome iron ores, manganese ores, lead ores, tin ores nickel ores, tungsten ores, molybdenum ore; common metals, their alloys and their semi-products, namely, common metals and their alloys, unwrought or semi-wrought; materials made of metal to be used, particularly, in constructions, namely, reinforcing materials of metal for building; materials and tools made of metal used for sheltering, storage, maintenance, coverage, wrapping, surrounding, warehousing or placement, namely, staircases of metal, transportable buildings of metal, modular metallic buildings, industrial packaging containers of metal; materials made of metal for sifting, filtering, namely, wire of common metal for use in the manufacture of wire netting, wire mesh, sifting screens, sieves and filters for sifting; metal goods, namely, doors and windows made of metal, rolling window shutters, outdoor sun blinds their casements and parts thereof; non-electric cables and wires of common metals; hardware of metal, namely, carabiners of metal; ducts of metal for ventilating, heating, drainage, telephone, underground electricity and air conditioning installations, air holes, air hole lids, pipes, chimney cowls, chimney lids, grills; materials of metal, namely, common metals and their alloys including stainless steel, common metals and their alloys, unwrought or semi-wrought for use in the manufacture of signs, directing signs, stating signs, and introducing signs, signboards, metal mail plates); pipes of metal for transportation of liquid and gas, and their connection parts, namely, drilling pipes; metal safes; materials of metal for railway tracks, namely, materials of metal for railway construction; scaffolding poles of metal; floating docks of metal; pontoons of metal used to support decking; anchors for sea vehicles; foundry moulds of metal, excluding the ones which are parts of machines, namely, foundry chill-molds; artworks of common metal and their alloys; metal caps for tubing ends; metal bottle caps; metal posts; metal pallets for lifting, loading and transporting, for use with metal ropes, metal hangers, railway ties, metal railway columns, belts of metal for handling loads, thin bands and ribbons of metal; metal towing ropes for load lifting, loading and transporting