... ,Aluminum) 2.Precision CNC Turning,Drilling,Boring,Milling stainless steel impeller/Turbine WheelSpecifications1.No defects sand casting+CNC deeper processing. 2 ... . MATERIAL CAPABILITIES Carbon steel, alloy steel, stainless Steel etc.Brass, bronze, aluminum, magnesium, Aluminum alloy, and zinc alloy etc.Grey iron ... iron etc.PP,PE,ABS,PET,PVC custom stainless steel impeller/Turbine Wheel