... strength, strong desulfurization. It as additives, alloy additives, mainly used in the production of steel and iron.4.FeSiMgRe is ... iron, or made as additive in rare earth middle alloys. Used as grey, nodular cast iron and vermicular iron inoculant, ... agents" products such as the important element of RE ingredients.Can also be used to wire coatings, mineral processing reagents, chemical industry ...