... 2.Casting ,extrusion,CNC(milling),anodized 3.Material:A16063 Heat sink for led 1) Alloy 6061,6063,6063B,6060,6005,6N012 ... .cutting 9.straightener 10.anodized4)Anodized Colour:silver, red, champagne, black, blue, bronze and so on.5)Machining procedure:die casting ...