... ,CNC machining, milling, drilling, griding,punching,screwing etc.;4.Finishing:mill finish,electrophoresis,polishing,plating,anodizing,painting,powder5.Packing: Plastic film and kraft ... , Tapping, Sandblasting and so on) 5. OEM & ODM services 6.Assembly work Better products ,Better service,Better world! punching machine processing aluminium part