Aluminium and its alloys; Architectural metalwork; Door knobs of common metal; Doors and windows of metal; Fittings of metal for furniture; Guard rails of metal; Gutter brackets of metal; Hardware mounting system comprised of metal brackets for bath accessories and decorative hooks; Hardware, namely, metal brackets for general use; Materials of metal for scaffolds; Mechanical fastening elements of metal; Metal bottle caps; Metal castings; Metal clamp-type fasteners for holding in place curtai...