... luster powder.Heat-resistance and good performance. Usage The Silicon metal has wide application. For example, producing organic-Si(Si-oil ... etc. Chemical Composition We could supply all kinds of slicon metal, eg.553#,441#,421#,3103#,2503#,2202#,1515#,etc. According ... to contact us!Anyang HuaXin Metallurgy Fire-Resistant Material Co., LTD Refractory material silicon metal 553# 441#