specialist of high chrome sand pump impeller 10 years experience ... delivery Impeller of sand pump impeller main features:1.high chrome alloy materials2.anti-abrasive, corrosion-resistant, longer service ... Casting), Permanent Casting, Die Casting, Centrifugal Casting, Forging and Stamping etc. Machining Types: Machined by Round Bar and steel plate, Drilling, Milling, Turning, Boring, Slating, Grinding ...