... valve bodies1,Material: WCBor ductile iron2,Technology: Resin sand casting,precision casting,lost foam casting,investment casting3,Weight ... suppliers Item No.Casting(Lost wax casting,resin sand casting,precision casting and so on)Key specification1.Material ... box resistance furnace, cutting head machine, shot-blasting machine, sand-blasting machine, pickling line.2.Machining facility: CNC machine, ...