With computer-control, frequency-conversion speed-regulation, phofocell tracking, automatic temperature-control. ... multifunctional bottom-sealing machineUse:With computer-control, frequency-conversion speed-regulation, phofocell tracking, automatic temperature-control, automatic counting ... bags. Main technical parameter:ModelJM-350JM-600Bag making speed(pcs/min)30-28030-280Bag making width(mm)20 ...