金属 库存总量 注销仓单 注销占百分比 铜 163,475 19,550 11.96% 铝 4,318,200 2,301,150 53.29% 铅 226,775 15,700 6.92% 锌 678,925 97,750 14.40% 锡 11,515 2,315 20.10% 镍 407,370 105,780 25.97%