金属 库存总量 注销仓单 注销占百分比 铜 383,925 253,250 65.96% 铝 5,467,825 2,354,700 43.06% 铅 217,475 35,175 16.17% 锌 900,100 476,175 52.90% 锡 10,210 3,345 32.76% 镍 255,120 108,318 42.46%