... CNC processing 1.Features:1. Raw materials: from pure aluminum to duralumin2. Resistant corrosion,resistant aging, fastness, easy installation ... .;3.Machining: cutting,CNC machining, milling, drilling, griding,punching,screwing etc.;4.Finishing:mill finish,electrophoresis,polishing,plating,anodizing ... Assembly work Better products ,Better service,Better world! punching machine processing aluminium part