... (Ultrasonic rhinestone fixing machine, mask making machine, ultrasonic ribbon cutting machine, ultrasonic lace sewing machine, ultrasonic plastic welding machines ... 2005,Nekon developed ultrasonic non-woven bag forming machine initiatively; two years later, Nekon produced ultrasonic ... days.Features of high-frequency shoes upper embossing machine:1.Oil hydraulic,high-frequency,synchronous fusion2. ...