... etc5.Application:Valve parts6:Workcraft :Precision casting, sandcasting, investment casting,forging,CNC machining7.Surface:Smooth(Painting, ... : sand castings , investment castings, die casting, permanent mold castings,forging,cnc machining,etc 18:manufacturing ... stainless steel,aluminum,brass…6, Casting process:sand casting ,investment casting,die casting ,stamping.Wills Machine Business Flow ...