Using a higher rigidity of the rack, low noise and low vibration, to further improve the electronic control system functions, response and response speed is more sensitive.lmprove the threading system, high-speed from the seam to prevent  the occurrence of fabric off-ine, shorten the tangent after the needle and thread.can effectively prevent the beginning of the sewing in the bird's nest stitch,improve the power power, thick material sewing Can be done easily. Can be used for men /women, denim, knitted fabrics, women's underwear for a variety of different purposes.