... and stable.(3)ultrasonic quilting machine of mattress bed cover Technical parameterModel NK-JM2012Frequency 15KHZ,Output power ... shoes, clothing coat, children jacket, pillow, quilt, mattress bed cover, cushion pillow, table mats table cloth, curtain shower ... , suit cover, bed cabinet, sauna kits cover, shoes , PVC pool bottom, etc..(5)ultrasonic quilting machine of mattress bed coverSample Pitures ...