manganiferous limestone含锰灰岩
manganiferous formation含锰建造
manganiferous ore含锰矿石
manganiferous ore processing锰矿加工
manganiferous rock series含锰岩系
manganiferous sedimentary formation含锰沉积建造
manganiferous by-product含锰废料
manganiferous white cast iron含锰白口铸铁
manganiferous iron ore含锰铁矿