金属 库存总量 注销仓单 注销占百分比 铜 172,675 27,575 15.97% 铝 4,272,100 2,256,225 52.81% 铅 219,825 9,100 4.14% 锌 687,450 89,250 12.98% 锡 11,190 1,305 10.71% 镍 405,174 96,210 23.75%