+ISO9001:2008 CE RoHS for cold forging Parts +Provide OEM service +mearly 10 years making experience +Resonable ... , drilling, skiving,deburring,fine blanking,soldering,bonding, punching, stamping,milling, CNC machining,polishing 2 surface treaments for heat sink clear anodizing, oxidation ... 2007. Any question, please feel free to contact us. cold forging Parts