... ,powder coated Cut,punch,drill ISO9001,SGS,ROHS large aluminum heat sink 1. Material: 6063,6061,6060,6005 or other2. Temper: T5 ... and sizes: A). Aluminum alloy bars: ranging from 1000 series to 7000 series, normal material such as 6063,6005,6061,6060, special ... requirements. 9. OEM service available, customized design available large aluminum heat sink