... .Cylinder Sand casting 2.Gravity pouring 3.CNC, Machining Center 4.Inspected by CMM 5.Smooth surface, Drill and ream holes Cylinder ... Dimensions: O.D. 500mm; 120mm high;4. Machined with CNC, Finished Ra1.0;5. Dilled and reamed holes with Machining ... steel cover, piston, pressure plate, center plate, wear plate, cylinder, impeller, disc etc.3. Nearly 150 varieties of products. Inspection1 ...