... 660mm*1730mm1000mm*800mm*1860mmWeight400kg500kg Working principle:(high power ultrasonic pvc sealing machine) High-frequency devices mainly used high-voltage rectifier ... sealing, PVC plastic foam sealing, PVC blister welding, PVC plastic blister welding, battery packaging sealing, hardware tools sealing, PETG blister sealing, blister cardboard sealing, USB packing sealing, memory package sealing, PVC ...