SAND CASTING VALVE PART precision machining OEM service,ISO 9001:2008 ... will do our best to meet your different needs.Service offer:1, Casting : 2, Machining: 3, Inspection:4, Raw Material ExportOEM ... Authorized Agent, we supply all the necessary assistant.Technology & EquipmentCasting: Sand Casting, Investment Casting, Die Casting, Forging, etc.Machining: Lathe, Boring ...