... as elliptical shape, square shape, rectangular shape, etc.7.Adopt CNC technology, servo motor in-feeding, with high efficiency, stable workpiece ... , diameter of holes, stadia and quantity of workpiece when edit program, or use CAD/CAM direct conversion.11.Loading, marking, punching ... , RS232 interface, floppy disk and USB interface JX4014 High Speed CNC Punching Marking and Cutting Machine for Angles