Common metals; Common metals, unwrought or semi-wrought; Alloys of common metal; Copper based alloys in wrought form; Metal building materials; Cables of metal, non-electric; Non-electric wires of common metal; Ironmongery; Articles of metal hardware; Hardware of metal (small); Copper; Copper, unwrought or semi-wrought; Copper pipes (other than parts of machines); Copper tubes (other than parts of machines); Copper wire, not insulated; Metal pipes for building purposes; Rigid tubes of metal; Tubes of metal; Clips of metal for tubes; Connectors of metal for tubes; Building parts of metal; Connection pipes of metal (parts of machines)