... have the hardness, the depth of testing instruments3. the product dimensional tolerances can ... Auto CAD , UG,Secondary processingCNC turning,lathe machining, Drilling, tapping, over sand,Surface TreatmentPlating, Sandblasting, oil Painting, Powder Coating,AnodizingProducts applicationOffice equipment ... and complexity of product processing, and the size of the order. Aluminum alloy diecasting of wheel