Extruded Heat Sink. 1.Material:AL6063-T5,AL6061-T6 is ok. 2. ... .CNC machining 4.Manufacture. High challenge extruded heat sink.It's hold good heat dissipation and smart surface treatment. 1.We can ... , Powder coated, Chromating, Passivating, Electrophoretic coated and etc. 4.Purpose: Heat sink, Decoration, Electronic equipment frame, Production line table, furniture, etc ...