金属 库存总量 注销仓单 注销占百分比 铜 250,775 113,700 45.34% 铝 5,354,450 2,996,475 55.96% 铅 202,400 30,175 14.91% 锌 821,050 180,825 22.02% 锡 9,420 2,050 21.76% 镍 280,002 132,498 47.32%