... casting part.Shot blast surface. Features to Casting Par,Filter body,Valve body: 1.Material :GG20,GG25,GG30 or GGG40.2.Unit ... .Machining machines:CNC,NC lathes,NC milling machines,boring machines,drilling machines and other common machines.8.Final inspection:CNC 3 ... industry,ship industry and others.10.Representative product:gate valve body,butterfly valve body,ball valve body,Filter body,pump body.