Aluminum heat sink 1.aluminum alloy6061,6063 or others 2.various anodized colour 3.very competitive price 4.welcome to OEM. Aluminum heat sinkAluminum heat sinks' specification: Diameter5CM,10CM,15CM or customer‘s requestmentMaterial6063 6061 or other different aluminium alloyFinishmill finish, anodized sliver ,anodized bronze, anodized , etc.Machinedlathe, milling machine, saw, punching machine, ...