Machining part aluminum cooling fin,heatsink, radiator Extrusion or die casting aluminum ISO certificated MOQ:1000 Aluminum cooling fin ,CPU heatsink ,radiator, CNC ... cutting, polishing, heat treatment, surface treatment complying with customers' drawings. Precision CNC machining part Capacity ... ,cold rolled steel ,spring steel ,aluminum alloy, brass, bronze, copper, plastic ,POM, ABS , according to ...