... tolerance,best price 4.mould can lead 5.modern CNC processing 1.Features:1. Raw materials: from pure ... blasting, sand blasting.;3.Machining: cutting,CNC machining, milling, drilling, griding,punching,screwing etc.;4.Finishing:mill finish,electrophoresis ... and so on) 5. OEM & ODM services 6.Assembly work Better products ,Better service,Better world! punching machine processing aluminium part