1. Adopt double presser foot with upper& lower feed that make the stitching neat and beautiful.
2. By adoption of large hook, shorten the bottom line replacement cycles, greatly improving the sewing officiency.
3. Low noise and vibratlon easy to operate.
4. Automatic high speed oil lubrication system.
5. New designed differential structure, same hook timing of each zig-zag stitch make the stitch more beautiful.