金属 库存总量 注销仓单 注销占百分比 铜 603,900 288,975 47.85% 铝 5,386,625 1,992,775 36.99% 铅 185,350 79,775 43.04% 锌 992,600 598,400 60.29% 锡 14,790 4,375 29.58% 镍 213,804 40,278 18.84%