金属 库存总量 注销仓单 注销占百分比 铜 439,100 281,125 64.02% 铝 5,419,275 2,091,075 38.59% 铅 233,825 51,475 22.01% 锌 977,900 551,150 56.36% 锡 11,380 4,530 39.80% 镍 249,138 91,554 36.75%