... with fabrics, such as beding sheet, mattress Ultrasonic quilting machine:ModelEffective BreadthOutput FrequencyWSD-15501550mm20KHzWSD-18501850mm20KHzWSD-23002300mm20KHzWorking Temperature≤28 ... is suitable for times. 3. It can replace pattern at random according to request. 4. It has ... the compound of needle-punched cotton; it can design pattern at random; the lining production of costume, bedspread, ...