金属 库存总量 注销仓单 注销占百分比 铜 314,525 185,900 59.10% 铝 5,423,550 2,456,075 45.29% 铅 208,475 37,375 17.93% 锌 854,450 273,150 31.97% 锡 8,885 3,255 36.63% 镍 266,538 98,610 37.00%