金属 库存总量 注销仓单 注销占百分比 铜 155,600 26,750 17.19% 铝 4,637,375 2,566,125 55.34% 铅 225,475 5,000 2.22% 锌 752,175 168,525 22.41% 锡 9,580 1,450 15.14% 镍 344,796 83,370 24.18%