Application:aluminum6061,6063,6005or customized Aluminum punching Heat sink(Aluminum Extrusion)Application:aluminum 6061,6063,6005,or ... 's requiementMachining processing:anodizing,brushing.CNClathe,punching,drilling,polishing,burringSurface color:black,silver,champagne,red roseFeatures:easy heat discharge,easy assemblingAluminum punching Metal punching