... , Die Casting, Centrifugal Casting, Forging and Stamping etc.3) Machining Types: Machined by Round Bar and steel plate, Drilling, Milling ... , Turning, Boring, Slating, Grinding,, NC/CNC Machining etc.4) Tolerance is controlled by CMM Machine.5) OEM ... ValveMaterial: Alloy Steel, Stainless SteelMachined from round bar by NC Machine or CNCChecked by Go & No go gageNDT Test ...