揧uefeng攕tainless steel ball,alu ball(1050),alloy alu ball(5052)are widely used metal cating,S/S casting,motor gardets,auto gardets,electrical applicance,valve,metal products etc,lt has hi 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揧uefeng擲/S ball polished with charastics of smooth. No rusty and dull polishing.And needn磘 anything to do again.