2000W 20KHZ Ultrasonic Welding Transducer With Booster For Non-woven PP PE POM Welding Machine Add to Inquiry 2000W 20khz Pzt8 Ultrasonic Welding Transducer With Booster And Steel Horn Add to Inquiry 28KHz 20khz 18khz 15khz Ultrasonic Welding Transducer With Booster For Ultrasonic Mask Machine Add to Inquiry 45*15*5mm PZT-8/PZT-4 Piezoelectric Ceramic Ring 28khz/35khz 800W Ultrasonic Welding Transducer With Boos Add to Inquiry