... ceramic transducer 2.PP,PE,PC,PVC,ABS,PU,CA,AS,PMMA,welding Ultrasonic welding PVC machineThe features of the machine:(ultrasonic ... part vibrate through ultrasonic, but only to make appropriate vibration surface vibrate and generate heat; therefore, there is no worry about ... any scar left on product surface, which is the characteristic of conductive weld. While welding ...