... PE fabric Canvas, Sailcloth...etc.,. therefor it can save more working time and manpower, makes work easier and faster.It can ... , screen fabric, nylon fabric, palstic and paper pieces, etc. Working PrincipleThe machine is designed according to the electromagnetism impulse theory ... , the green is for punching, the "option" is for working mode and punching frequency.Manual mode: Press the "Option" button ...