cnc machine OEM service According to customers detailed specificationdrawings or ... heat alloys, plastics, brass, bronze, aluminum and aluminum casting ect.2.Standard: ASTM, SAE, BS. DIN, UNI3.Surface Treatments: sand ... plated4. Heat treatments: tempered or annealed, induction hardeded5.Processing Methods: CNC machining, General Engineering, Turning, Drilling, Polishing, Knurling, Tapping, Threading, ...