Name：Rare earth ferrosilicon Introduction： ●Has been widely used as an additive into iron and steel; delivers a relatively high chemical activity, which is  manifested in deoxidization, desulphurization, dephosphorization, and counteracting harmful elements in other metals; ●Enhances the metal purity; improves the original grains of alloy; betters the thermo- plasticity, increases the low-temperature performance, calorific intensity and other usages of importance; ●Delivers a relatively strong affinity towards oxygen, sulphur, nitrogen, phosphor, and diffluent non-ferrous metals (arsenic, lead, stibium, bismuth, tin and zinc, etc; ●Effectively treats with cast iron and its alloys; purifies liquid metals; removes oxygen, sulphur, phosphor and other impurities; and improves the properties of cast iron; ●Can be directly used to deal with steel and cast iron, or to configure other various kinds of compound intermediate alloys for master alloy.