... film, Sideband feeding,cut the elastic short,/welding, Side bags, side-band welding, Sideband Cutting, Full automation.Equipment Specifications:1 ... 2, The machines use up to four 1500w ultrasound system, Allows the dissolved to achieve the best most stable ... mistakes automatic tension control to reduce waste, Adjustable ultrasonic welding, Stack count function, collecting, testing fastDesign:This is ...