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 ... alloy bars: ranging from 1000 series to 7000 series, normal material such as 6063,6005,6061,6060, special materials such as ...