金属 库存总量 注销仓单 注销占百分比 铜 161,200 43,800 27.17% 铝 5,109,600 2,834,625 55.48% 铅 192,875 12,175 6.31% 锌 680,650 61,950 9.10% 锡 10,880 1,920 17.65% 镍 286,728 110,958 38.70%