alloys of iron with other elements made by smelting mixtures of iron ore and the metal ore; e.g. ferrochromium, ferrovanadium, ferromanganese, ferrosilicon, etc. They are used in making alloy steels., raua ja mangaani, räni, kroomi vms elemendi sulamid, mida kasutatakse peamiselt terase redutseerimiseks ja legeerimiseks. .... Laialdaselt kasutatavad ferrosulamid on nt ferromangaan (sisaldab üle 60%