... ,powder coated Cut,punch,drill ISO9001,SGS,ROHS aluminium cooling fin 1. Material: 6063,6061,6060,6005 or other2. Temper: T5 ... . Finish: Mill finished, anodized,powder coated,polished,brushed,sand blasted 4. Various colors: Silver,bronze,black,gold,blue,grey,champagne,red ... requirements. 9. OEM service available, customized design available aluminium cooling fin