金属 库存总量 注销仓单 注销占百分比 铜 469,975 280,425 59.67% 铝 5,368,325 2,165,225 40.33% 铅 233,150 54,750 23.48% 锌 1,023,225 533,775 52.17% 锡 12,120 3,735 30.82% 镍 239,985 85,188 35.50%