金属 库存总量 注销仓单 注销占百分比 铜 292,750 31,975 10.92% 铝 3,988,700 2,257,525 56.6% 铅 214,025 10,150 4.74% 锌 598,575 201,200 33.61% 锡 11,910 2,595 22.79% 镍 425,310 107,634 25.31%