金属 库存总量 注销仓单 注销占百分比 铜 154,650 26,300 17.01% 铝 4,535,475 2,702,575 59.59% 铅 225,525 5,500 2.44% 锌 726,400 140,525 19.62% 锡 9,155 220 2.40% 镍 374,934 88,044 23.48%