金属 库存总量 注销仓单 注销占百分比 铜 168,475 70,525 41.86% 铝 5,175,500 2,856,375 55.19% 铅 190,425 17,650 9.27% 锌 703,425 87,350 12.42% 锡 10,915 3,635 33.30% 镍 283,752 113,550 40.02%