... .Casting ,extrusion,CNC(milling),anodized 3.Material:A16061,A16063 etc Aluminium heatsink 1) Alloy 6061,6063,6063B,6060,6005,6N012) Alloy ... than 500 employee, & more than 10% of them technologists.4 Machine & CapacityExtrusion line 18 set of 500-3000tons imported extrusion lines ...