6 Common metals and their alloys, in particular curable alloys, light metals, aluminium alloys, steel, copper and copper alloys, copper-zinc-aluminium alloys, copper-aluminium-zinc-cobalt alloys, copper-aluminium-tin-zinc alloys, copper-tin-zinc alloys, copper-nickel-tin alloys, copper-tin alloys, copper-zinc alloys, copper-nickel-zinc alloys, copper-nickel-zinc-lead alloys, copper-nickel-silicon alloys, copper-nickel-silicon-tin alloys, copper-iron alloys, bronzes, German silver, German silver containing lead, brass, special brass and brass containing lead; goods of the aforesaid common metals and their alloys, namely bands, surface-coated bands, hot-dip galvanised bands, profiled bands, pre-punched bands and stair bands, sheet metal, wires, semi-finished goods, contact wires, conductor cables, profiles, hollow profiles and pipes; all the aforesaid goods included in class 6.