... film, Sideband feeding,cut the elastic short,/welding, Side bags, side-band welding, Sideband Cutting, Full automation.Equipment Specifications: ... mistakes automatic tension control to reduce waste, Adjustable ultrasonic welding, Stack count function, collecting, testing fastDesign:This ... principle of the use of ultrasound to make cloth, leather, plastics, non-woven fabrics, acrylic adhesive surface of ...