... machine ultrasonic fabric Sewing Machine Ultrasonic Cutting and Sewing MachinesTechnical Parameter:ModelJRL-015Frequency20KHzWorking Speed0-18m/ ... time.Suitable material:All kinds of artificial leather and fabric,nonwoven fabric, spun-bonded cotton,thermoplastic ... products,handkerchief,tablecloth,curtain,bedspreed,pillowcase,quilt cover,tent,raincoat,disposable operating coat and hat,disposable mask ...