... carton5.Treatment: surface quenching by high frequency induction or nitrogen treatment, carburizing hardened.6.Process: stamping ... assembly.7.Finish: Chromic/Nickel plated or e-coated or others.8.Trade terms:FOB ningbo ... polishing, PVD/CVD coating, galvanized, electroplating, spraying, chrome or nigrescence processingTesting equipmentISO/TS16949Service projectmould development and processing, fixture ...