Machining part aluminum cooling fin,heatsink, radiator Extrusion or die casting aluminum ISO certificated MOQ:1000 Aluminum cooling fin ,CPU heatsink ,radiator, ... Terms/Shipment Terms/Lead time):TypePrecision CNC machining partMaterials:Aluminum alloy, stainless steel , brassMaterial GradeGB,ASTM,AISI ... 002Wire-Cutting 0.002 machining part aluminum cooling fin CPU heatsink aluminum ,aluminum radiator