金属 库存总量 注销仓单 注销占百分比 铜 265,700 119,775 45.08% 铝 5,414,875 2,525,450 46.64% 铅 200,700 29,150 14.52% 锌 780,075 157,500 20.19% 锡 9,430 2,185 23.17% 镍 283,578 134,940 47.58%