... speed of punching and marking is faster ... the speed of punching and marking is faster.3 ... 5.Closed cutting unit, good rigidity.6.According to ... and pneumatic components are all imported, with good performance.9.Easy programming and ... of holes, stadia and quantity of workpiece when ... marking, punching, cutting and unloading are all performed automatically ... by keyboard, RS232 interface, floppy disk and USB ...