... etc. The finished products will with better water tightness, high efficiency of production, accessory without thread, smooth section without ... face masks, respirator (cup type masks, dust masks, disposable non-woven 3 ply face masks, etc) Ultrasonic lace sewing machine ... should more than 30%), for instance, Nylon, needlework cloth, non-woven fabrics, T\R cloth, Tetoron cloth(Polyester cloth), ...