... die casting aluminum ISO certificated MOQ:1000 Aluminum cooling fin ,CPU heatsink ,radiator, CNC machining , CNC turning , CNC millingProduction Range ... steel ,cold rolled steel ,spring steel ,aluminum alloy, brass, bronze, copper, plastic ,POM, ABS , according to customer request4).Finish: Anodizing , ... 002Wire-Cutting 0.002 machining part aluminum cooling fin CPU heatsink aluminum ,aluminum radiator