The machine is designed with a structure of differential gears, forward/reverse feeding units and inner winder. It runs smoothly, and flexible operation. Convenient maintenance and has stable and pleasing stitch. This series of machines can be used in the sewing of embroedery, garment, hats, gloves, leather products and luggage. It can be applied to the material of thin or medium heavyness, for the stitch of straight Zigzag or multi-point zigzag. It’’s a multi-functional sewing machine.