... ,28KHz,40KHz ratings in Rectangular and Round shape.2. Material: steel, aluminum, titanium3. High precision Ultrasonic welding horn(mould,Sonotrode) ... ,as per your specification and Design4. These Horns are manufactured in our own machine shop on CNC machines ... widely used in Ultrasonic plastic welding machine,non woven fabric making machine, zipper making machine, and paper cup making machines, etc. ...