... CE passed vaious size and materails quick delivery Impeller of sand pump impeller main features:1.high chrome alloy materials2. ... and low price8,ISO CE PASSED ) Materials include: Stainless Steel, Carbon Steel, Alloy Steel, Ductile Iron, Grey Iron, Copper, Aluminum Bronze, ... and Stamping etc. Machining Types: Machined by Round Bar and steel plate, Drilling, Milling, Turning, Boring, Slating, Grinding,, ...