金属 库存总量 注销仓单 注销占百分比 铜 263,250 125,525 47.69% 铝 5,375,350 2,631,275 48.95% 铅 201,650 30,275 15.01% 锌 833,575 167,500 20.09% 锡 9,555 1,940 20.30% 镍 283,956 133,326 46.95%