金属 库存总量 注销仓单 注销占百分比 铜 204,650 47,350 23.14% 铝 1,083,800 246,450 22.74% 锌 180,125 67,275 37.35% 镍 364,218 103,638 28.45% 锡 2,135 810 37.94% 铅 140,600 43,375 30.85% 铝合金 14,580 1060 7.27%