... bag making machine Characteristics:1. This machine adopts micro-computer control system with stepping motor(servo)feeding, photoelectric tracking, automatically punching ... , rush corner,zip, article welding, correction, anticipate alarm, stop, main-motor transducer, ultrasonic welding etc.2. Bag making ... side box bag30-60pcs/m, zipper bag 30-70 pcs/m, hand bag (with hand laptop)30-40pcs/m, ...