金属 库存总量 注销仓单 注销占百分比 铜 141,300 21,925 15.52% 铝 4,892,775 2,777,200 56.76% 铅 215,775 6,225 2.88% 锌 737,850 60,375 8.18% 锡 12,790 2,810 21.97% 镍 322,728 87,984 27.26%