金属 库存总量 注销仓单 注销占百分比 铜 545,625 269,375 49.37% 铝 5,392,725 1,904,975 35.32% 铅 241,725 64,125 26.53% 锌 972,100 597,125 61.43% 锡 13,625 2,635 19.34% 镍 226,278 47,718 21.09%