Building and construction materials and elements of metal, namely, door frames of metal, window frames of metal, prefabricated metal buildings, transportable metal constructions; metal hardware, namely, knobs of metal, common metal pulls, metal clips for general use, metal mounting brackets for general use; doors, gates and windows, all of the foregoing made of metal; transportable buildings of metal; metal handles, namely, door handles; sheet metal; cover panels of metal, namely, door panels...