金属 库存总量 注销仓单 注销占百分比 铜 564,225 292,850 51.90% 铝 5,428,175 2,033,500 37.46% 铅 187,850 84,500 44.98% 锌 1,023,575 622,950 60.86% 锡 15,305 3,710 24.24% 镍 210,060 39,576 18.84%