large aluminum heat sink Material:6063,6061,T5/T6 Mill finish,anodized,powder coated Cut,punch,drill ISO9001,SGS,ROHS large aluminum heat sink 1. Material: 6063,6061,6060,6005 or other2. Temper: T5 or T63. Finish: Mill finished, anodized,powder coated,polished,brushed,sand blasted 4. Various colors: Silver,bronze,black,gold,blue,grey,champagne,red,etc. 5. Machining: Cutting,punching,drilling, ...