Applications: welded thermal plastic parts made of PS, PVC, ABS, PC, PP, PE, PET, or nylon, used for plastic toys, batteries, home appliances, stationery, automobile rubbers, daily commodities, packages, and cosmetics Features: 1) Sturdy and powerful 2) Fine steel booster for long usage life 3) Imported piezoelectric ceramic and patented installation converter adopted for transducer 4) Auto frequency tracking, over-voltage protection, strong and stable power output 5) High quality famous elements adopted for unit assemblies 6) American style full-bridge high-power ultrasonic circuits adopted