... ,powder coated Cut,punch,drill ISO9001,SGS,ROHS large aluminum heat sink 1. Material: 6063,6061,6060,6005 or other2. Temper: T5 ... ,etc. 5. Machining: Cutting,punching,drilling,milling,bending,welding,CNC etc.6. Various in styles and sizes: A). Aluminum alloy bars: ranging from ... requirements. 9. OEM service available, customized design available large aluminum heat sink