6 Common metals and their alloys; ores of metal; building and construction materials of metal, namely, steel, unwrought or semi-wrought, steel alloys; transportable buildings of metal; non-electric cables and wires of common metal; small items of metal hardware, namely, containers of metal for storage and transport; metal slides for guiding doors, windows, blinds, drawers, curtains, rigid panels and articles during operation, management, support, and hanging of such items; metal rails; metal chains; locksmithing goods of metal for construction, namely, bump keys of metal; nails and screws of metal; hardware for building, namely, aluminum sliding tracks for doors; jalousies and gratings of metal; anchoring devices of metal, namely, metal anchor bolts; non-electric window openers of metal being window cranks and screwjacks; devices of metal for securing doors, namely, metal clasps; non-electric door and window opening devices being foot-operated door openers of metal; non-electric devices for closing windows being metal window pulleys and cranks; pipes of metal; metal wheels for furniture and beds; sliding doors of metal for buildings; fittings of metal for doors; door kick plates of metal; metal runners for sliding doors; frames of metal for sliding doors; sliding door runners of metal; metal rollers for sliding windows; metal sliding door rollers; runners of metal for sliding doors; all the aforesaid goods intended exclusively for doors and windows