金属 库存总量 注销仓单 注销占百分比 铜 371,975 246,300 66.21% 铝 5,474,700 2,361,800 43.14% 铅 215,450 33,150 15.39% 锌 885,600 452,775 51.13% 锡 10,005 4,170 41.68% 镍 258,258 103,182 39.95%