... Size: Dia.54mm -110mm 3.Amplitude ratio: titanium mould for Ultrasonic plastic welding Gr1,Gr2,Gr3,Gr4, 1.Frequency coverage15KHz-100KHz ... , Catenary, Guassian and other composite structrue8. Application:Chemical, Petroleum, Plastic Welding, Metal welding, Drilling, Turning, Cleaning, Machining9. Service:a ... on timec. We promise we'll replace the materials for the same at our costd. Test:Provide Bao ...