... welding machine 1.Frequency coverage15KHz-100KHz 2.Size: Dia.54mm -110mm 3.Amplitude ratio: titanium mould for ultrasonic welding ... 1-1:155. Connection screw:as per your request6. Surface treatment: blackened finished, polished , chromeplate etc7. Shape ... and other composite structrue8. Application:Chemical, Petroleum, Plastic Welding, Metal welding, Drilling, Turning, Cleaning, Machining9. Service:a. ...