金属 库存总量 注销仓单 注销占百分比 铜 172,675 31,450 18.26% 铝 4,261,750 2,266,975 53.19% 铅 219,825 9,200 4.19% 锌 685,275 110,025 16.06% 锡 12,190 1,380 11.32% 镍 406,854 96,924 23.82%