... LDPE,HDPE, 3.double line production 4.compurter control FQ-B Model Bottom Sealing T-shirt Bag Making MachineFeature:This ... . The whole machine adopts microcomputer control and material-pulling by stepping motor (Servomotor control system can also be selected and ... tracking, stopping automatically when the label is lost, photoelectric control feeding.3. Automatic counting and set able counting alarm. ...