... , UNI 2.Surface Treatments: sand blasted, painted, electrophoresis, zinc plated maching parts1.OEM service according to customers detailed specificationdrawings or samples2 ... hardeded6.Processing Methods: CNC machining, General Engineering, Turning, Drilling, Polishing, Knurling, Tapping, Threading, Burnishing, Slab Milling, Face Milling and End Milling maching part