金属 库存总量 注销仓单 注销占百分比 铜 178,425 25,125 14.08% 铝 4,204,650 2,352,450 55.95% 铅 221,975 10,325 4.65% 锌 686,925 187,750 27.33% 锡 12,110 1,860 15.36% 镍 414,756 87,108 21.00%