Alloyed iron; Alloyed steels; Aluminium and its alloys; Aluminum alloy; Brass alloys; Bronze; Casting alloys; Common metals and their alloys including stainless steel; Copper alloys; Ferroalloys; Fittings of metal for furniture; Fittings of metal for pipes; Metal pipe couplings; Metal pipe couplings and joints; Metal pipe fittings; Metal pipes and metal fittings therefor; Metal pipes and tubes; Mounting brackets made of metal for general use; Spring-loaded door closers of metal; Structural jo...