金属 库存总量 注销仓单 注销占百分比 铜 172,500 74650 43.28% 铝 5,199,175 2,877,300 55.34% 铅 190,850 17,500 9.17% 锌 719,600 93,200 12.95% 锡 10,915 3,550 32.52% 镍 283,662 109,812 38.71%