... is seen as an advantage.7.Surface Finish Improvement: A surface finish of about 125 RMS is common ... 2,000 lbs.All zinc alloys Material Grey iron,ductile iron,malleable iron,stainless steel, carbon steel,aluminum,brass etc ... machining such as Machining center, CNC, Lathe, Milling machine,drilling etc.Size and designAs per the customer ... High quality various process and material available cast iron