About Product:9 into a new, good performance, suitable for thick material double needle process; the use of needle to send and send cloth teeth synchronous feeding, to ensure uniform and beautiful seam purpose. Two times the design of the large kettle and the shuttle, the bottom line is exempt from the loss due to the bottom line, resulting in a waste of automatic fuel design, reduce the loss of parts, and reduce the noise generated by the sewing. Suitable for sewing handbags, sofa furniture, sports goods, shoes, gloves, tents, clothing and other materials.