... Grey iron, Ductile iron, Alloy steel , Carbon Steel, Aluminum, Brass,etc2, Standard: ISO 9001:20083, Full set Quality Control4, Best Quality and Best ... we supply all the necessary assistant. Service offer: 1, Casting : 2, Machining: 3, Inspection: 4, Raw Material ExportTechnology & Equipment Casting ... : 0086-411-8370-1520FAX: 0086-411-8370-4610 Carbon steel flang casting with Japanese CNC machining