... steel,AL. 4.Different style Mechanical part Mechanical partBrass Mechanical partsBrass Parts,CNC machine Mechanical processingExcellent dimension accuracy Finishing: ... 11.3D Scan.12.Reverse Engineering.Item NO. mechanical part processingMaterialsIron, aluminum, steel, copper, plastic, ... treatmentHeat treatment, polishing, PVD/CVD coating, galvanized, electroplating, spraying, and painting and so on ...