+ISO9001:2008 CE RoHS for cold forging Parts +Provide OEM service +mearly 10 years ... according to your requirement 1 Processing of heat sinks: precision cutting, drilling, skiving,deburring,fine blanking,soldering,bonding ... , stamping,milling, CNC machining,polishing 2 surface treaments for heat sink clear anodizing, oxidation process, powder coating, ... please feel free to contact us. cold forging Parts