... the cold processing. (2)ultrasonic quilting machine of mattress bed cover Product Features 1.Short welding time,ultrasonic ... smooth and stable. (3)ultrasonic quilting machine of mattress bed cover Technical parameter Model NK-JM2012Frequency 15KHZ,Output ... , footwear shoes, clothing coat, children jacket, pillow, quilt, mattress bed cover, cushion pillow, table mats table cloth, curtain shower curtain, ...