... .OEM casting part2.CNC machining3.material : zinc,zinc alloy,iron,grey iron,stainless steel,carbon steel,aluminum, brass,etc.4.working process ... , Machining: 3, Inspection:4, Raw Material ExportCasting1. Casting Material: Grey iron, Ductile iron, Alloy steel , Carbon Steel, Aluminum, Brass,etc2. Standard: ISO ... .Or Client Authorized Agent, we supply all the necessary assistant. PIPES CASTING