6 Ores of metal; common metals and their alloys; alloyed steels; stainless steels; welding steel; pipes, strips, tubes and coils of metal or steel; coated, galvanized or plated steel strips and sheets; profile and structural steels; rolled steels and stainless steels; coated rolled stainless steels in plate, rod, sheet, coil, pipe or tube form for use in civil and industrial buildings, constructions and infrastructures; metal or steel building materials; metal or steel buildings; transportable metal or steel buildings; materials of metal for railway tracks; non-electric cables and wires of common metal; ironmongery, small items of metal hardware; safes [metal or non-metal]; goods of common metal, namely, containers, construction fittings, roof panels, façade panels, springs, windows, window sills, window frames, grilles, hooks, cramps, bridge bearings [construction materials] of metal, silos, pins, gate and door frames, gates and doors, supporting structures, staircases, door panels, door handles, screw-connection parts, wall panels, brackets, fences and parts and fittings thereof, metal building materials, namely, prefabricated sandwich components consisting predominantly of sheet metal for industrial and housing construction, ironmongery, small items of metal hardware, pipes and tubes of metal