6822: Copper and copper alloys, worked

68221: Bars, rods, angles, shapes & sectns.wrought, of copper 68222: Plates, sheets and strip, wrought, of copper 68223: Copper foil, of a thickness not exceeding 0, 15mm 68224: Copper powders and flakes 68225: Tubes, pipes, blanks therefor; hollow bars of copper 68226: Tube and pipe fittings, of copper 6822: Copper and copper alloys, worked