1.Simplified zipper sewing can be finished in one time, so that it can increase production efficiency largely.
2.It adopts horizontal large hook and standard 3/8 inch needle gauge set. It can sew maximum thread of 9 strands nylon.
3.The synchronous pulling device with upper and lower feeding make the zipper sewing more stable, and the effect would be more smooth.
4.The alternating amount of presser foot can be adjusted by hand.
5.Three parts compound feed constru uction make sure feed smoothly while sewing heavy or complicated material,and difficult to move for upper and lower material.