金属 库存总量 注销仓单 注销占百分比 铜 162,625 36,425 22.40% 铝 4,441,425 2,559,750 57.63% 铅 226,525 14,300 6.31% 锌 703,100 132,450 18.84% 锡 9,260 630 6.80% 镍 381,762 88,038 23.06%