... efficiency 5.Ultrasonic rolloff WZDJ-NB FULL AUTOMATIC NONWOVEN BAG MAKING MACHINE Use:This machine continual improved by our company, according ... computer display,PLC computer program which can edit.2. Auto meter counting,stopping could freely setting number.3. Computer ... magnetic powder tension control with manual,auto side-correction control.7. This machine adopt ultrasonic welding of all aspects, ...