金属 库存总量 注销仓单 注销占百分比 铜 154,600 28,825 18.64% 铝 4,757,900 2,489,850 52.33% 铅 224,925 4,475 1.99% 锌 736,650 54,075 7.34% 锡 12,435 2,875 23.12% 镍 332,034 81,690 24.60%