金属 库存总量 注销仓单 注销占百分比 铜 154,700 21,200 13.70% 铝 4,777,225 2,497,025 52.27% 铅 224,550 4,475 1.99% 锌 738,075 55,550 7.52% 锡 12,435 2,840 22.84% 镍 330,720 84,636 25.59%