1, Ultrasonic cleaning transducer A. Low frequency , 17K, 18K, 20K, 23K B. Middle frequency : 25K, 26K, 28K, C. Middle higher frequency: 33K, 35K, 40K, 45K, 50K, 55K, 60K, 65K D. Higher frequency: 68K, 80K, 100K, 120K, 130K, 160K, 165K, 200K, 235K E. Multi-frequency : 28K/ 40K, 40K/ 130K, 40K/ 68K, 40K/ 80K/ 130K, 40K/ 100K/ 160K 6. Ultrasonic PCB ( Frequency 20K- 60K, Power 10W-200W) , 7. Ultrasonic sweep generator ( powerd2500W )