... Heatsink Profiles from dongguan factory Sun Flower Aluminium Extrusion Heatsink Profiles Meterial:AL 6063 6061/T5/T6 available1 ... , skiving,deburring,fine blanking,soldering,bonding, punching, stamping,milling, CNC machining,polishing2 Surface finish for heat sink:clear anodizing, oxidation process ...