1.Insert fins heatsink. 2.Material Al6063/6061. 3.OEM orders are welcome. 1.Material:AL6063/6061.2.Finish:cleaning anodizing.3.Procedure:preciously cutting,milling,driling,punching,CNC machining.4.OEM orders are welcomed.Email us for the further informations. High quality aluminum heatsink enclosure extrusion