金属 库存总量 注销仓单 注销占百分比 铜 202,975 93,725 46.18% 铝 5,289,600 2,907,625 54.97% 铅 193,675 20,625 10.65% 锌 757,975 123,775 16.33% 锡 9,620 3,690 38.36% 镍 278,994 116,226 41.66%