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 ... Cutting,punching,drilling,milling,bending,welding,CNC etc.6. Various in styles and sizes: A). Aluminum alloy bars: ranging from ... . OEM service available, customized design available large aluminum heat sink