... powder,briquette Material: Re,Si,Mg Dimensions: as customer's require Chemical Composition: Si,Mg,Re,Ca,Al,Fe Name: Rare Earth ... steel and iron.Topchase produces all kinds of rare earth ferro silicon magnesium nodulizer for ductile cast iron. ... 3. Ferroalloy: reducing agent. 4. Sand blasting, Polishing, Refractory, Steel Casting, Coatings, Abrasives, Building Ceramic Industry ...