金属 库存总量 注销仓单 注销占百分比 铜 318,550 99,175 31.13% 铝 1,392,625 329,200 23.64% 锌 273,675 203,325 74.29% 镍 376,475 120,550 32.02% 锡 1,870 175 9,36% 铅 158,625 63,275 39.89% 铝合金 12,340 0 0.00%