Features:
1、Simplify the operation difficulty of zipper sewing, one time forming, greatly improve production efficiency.
2、 Horizontal large rotary hook structure, standardwith 3/8-inch needle position, the thickest can be sewn with 9-strand nylon thread.
3、The synchronous pulling device with upper and lower feeding make the zipper sewing more stable, and the effect would be more smooth.
4、Manually adjustable alternating of inner and outer presser feet.
5、Three synchronous compound feeding structureensures smooth feeding when sewing thick orcomplex structural materials, and prevents displacement of upper and lower materials.
