金属 库存总量 注销仓单 注销占百分比 铜 429,200 270,976 63.13% 铝 5,395,275 2,095,300 38.83% 铅 231,875 49,275 21.25% 锌 964,450 533,400 55.31% 锡 10,815 2,615 24.18% 镍 251,910 101,214 40.18%