... high strength, nice welding seam, good sealing,low energy consumption and Ultrasonic seamless sewing module (machineThe ultrasonic rotary type vibration is used ... : Fast welding speed, high strength, nice welding seam, good sealing,low energy consumption and easy operations so on. So it ... what’s more, high strength in sewing and welding, good sealing. Thus it ‘s much possible, to a large degree, ...