金属 库存总量 注销仓单 注销占百分比 铜 207,300 48,100 23.20% 铝 2,488,325 1,101,175 44.25% 锌 382,150 30,175 7.90% 镍 395,514 122,316 30.93% 锡 6,730 1,690 25.11% 铅 185,400 73,550 39.67% 铝合金 13,940 2,340 16.79%