... the products producing one time directly, without loose edge and hole.4.This machine use ultrasonic for cover sewing, pressing and ... , etc. This machine can be used to all kinds of fabric, artificial leather, coated cotton, PE paper, PE + aluminum, PE+ cloth ... cloth, Tetoron cloth(Polyester cloth),multilayer cloth, and other coated fabric and coated papers.2,The suitable product of ultrasonic lace ...