金属 库存总量 注销仓单 注销占百分比 铜 322,575 193,925 60.12% 铝 5,438,075 2,447,800 45.01% 铅 209,175 40,125 19.18% 锌 864,275 279,875 32.38% 锡 8,905 3,195 35.88% 镍 264,288 102,000 38.59%