Ultrasonic plastic welding generator (ultrasonic converter,function generator) 300w~4200w High quality,easy operating.. Ultrasonic plastic welding generatorSpecification ... 516*152(mm)4. Weight: 14kgApllication fields:Ultrasonic plastic welding generator widely used in Ultrasonic plastic welding machine, mask machine,non ... for paper cup making Jinrong Factory Ultrasonic plastic welding generator