... stable performance 3.Simple operation and convenient Specification :Ultrasonic system composition, by ultrasonic generator, converter, a combination of mouldFrequency: 20KHz, 15KHz.Output ... , Stationery, Plastic Welding Machine, Machinery, Automation Equipment, etc.Ultrasonic Welding Generator for Plastic products,Mask, Paper Cup, etc. Continuous Ultrasonic Non ...