金属 库存总量 注销仓单 注销占百分比 铜 408,100 270,400 66.26% 铝 5,451,375 2,331,700 42.77% 铅 227,925 45,525 19.97% 锌 941,850 519,725 55.18% 锡 10,550 2,375 22.51% 镍 253,068 102,144 40.36%