1.WSD Ultrasonic non woven bag making machine 2.Manufacturing Experience: 20 years 3.Sewing type:Ultrasonic technology ... Ultrasonic Rolling Sewing Machine2.Core Part:Ultrasonic generator,transducer,horn3.Machine type:Manual4.Application:Non Woven Shopping Bag Making With ... :Use ultrasonic energy to cut, weld, seal seam, hole, emboss, stitch, slit, form. color & fold.2.Need no traditional needle & ...