South Nekon ultrasonic quilter for mattress/napkin/table cloth/bedcover: Model NK-JM2012 Frequency 15KHZ Output ... South Nekon fully automatic ultrasonic quilter for mattress/napkin/table cloth/bedcover(1),The principle of operationUsing high-frequency ... jacket, pillow, quilt, mattress bed cover, cushion pillow, table mats table cloth, curtain shower curtain, cold gloves, baby mat moisture urinal ...