... , foot pads, door panels,clutch forks;2. Electric products : humidifiers, chargers, storage battery, telephones, sockets, flash discs;3. Medical ... repeatable, clean and precise. Why to use ultrasonic welding?1) ultrasonic assembly use ultrasonic vibratory energy which is transmitted through the ... province,which is a becautiful coast city of china. 20KHz CE Certificate Ultrasonic Plastic Welder