金属 库存总量 注销仓单 注销占百分比 铜 167,425 23,250 13.89% 铝 4,282,500 2,266,175 52.92% 铅 220,175 9,450 4.29% 锌 688,775 84,575 12.28% 锡 11,245 1,430 12.72% 镍 405,186 97,638 24.10%