... edges;2. Sealing: Two or more layers of fabric stitched together without thread replacing the sewing needles, ... time.Suitable material:All kinds of artificial leather and fabric, nonwoven fabric, spun-bonded cotton, thermoplastic film, chemical plastic ... operating coat and hat, disposable mask, non-woven fabric bags and so on. Technical specification CommodityUltrasonic lace machineSpecification JP ...