金属 库存总量 注销仓单 注销占百分比 铜 297,400 29,800 10.02% 铝 3,932,750 2,185,975 55.58% 铅 214,600 13,725 6.4% 锌 560,125 162,325 28.98% 锡 10,770 905 8.4% 镍 430,932 108,504 25.18%