6842: Aluminium and aluminium alloys, worked

68421: Bars, rods, angles, shapes & sectns.wrgt.of aluminium 68422: Plates, sheets and strip, wrought, of aluminium 68423: Aluminium foil, of a thickness not exceeding 0, 20mm 68424: Aluminium powders and flakes 68425: Tubes, pipes, blanks therefor; hollow bars of alumin. 68426: Tube and pipe fittings, of aluminium 6842: Aluminium and aluminium alloys, worked