yuefeng stainless steel shot are widely used metal cating,S/S casting,motor gardets,auto gardets,electrical applicance,valve,metal products etc,lt has high effect and good covering of surface finish in oxidize-removing,clear surface defects,rusty,dull finish,reinforcing,pre-rust before coating etc.the casting fittings with yuefeng s/S ball polished with charastics of smooth. No rusty and dull polishing.And no need anything to do again.