Aluminum alloy; Alloys of common metal; Pipes of metal; Windows of metal; Window frames of metal; Reinforcing materials of metal for buildings; Doors of metal; Door frames of metal; Fences of metal; Shutters of metal; Sash fasteners of metal for windows; Fittings of metal for windows; Hinges of metal; Door handles of metal; Hinge pin door closers of metal; Door fittings of metal; Window pulleys of metal; Runners of metal for sliding doors; Metal hardware, namely, nuts; Locks of metal, other t...