金属 库存总量 注销仓单 注销占百分比 铜 541,125 274,850 50.79% 铝 5,385,900 1,899,850 35.27% 铅 240,600 63,000 26.18% 锌 969,050 594,075 61.30% 锡 13,490 2,500 18.53% 镍 226,218 47,736 21.10%