6 Fittings, stops, frames and casings of metal doors; composite metal panels for openings or parts of openings, in particular for industrial doors, with or without sound and/or heat insulation elements; metal profiles for openings and parts of openings, in particular for industrial doors; special industrial doors of metal, in particular sliding, revolving, guillotine, up-and-over, accordion, watertight, armored, fire-proof, blast-proof and bullet-proof doors (of metal); metal doors and gates; joinery of metal; metal hardware, in particular for industrial doors; non-electric opening and closing devices of metal for openings, in particular for doors; staircases and fences of metal; building materials of metal; transportable buildings of metal; materials of metal for railway tracks; non-electric cables and wires of metal; pipes of metal; common metals and alloys thereof