... Model JD-2020 Frequency 20KHZ Output power 13KW Non Woven Filter Products Sewing Machine Applied range:Car tarpaulin, Car seat ... storage, tents wardrobe, washing machine covers, mummy bag, blanket, cosmetic bags, suit cover, bed cabinet, sauna kits cover, shoes , PVC ... , etc.. 1.The principle of operation of Non Woven Filter Products Sewing Machine Using high-frequency vibration wave propagation to ...