Applicable to: Common light, medium-heavy and heavy weight, sewing for knitting wear, shirts, suites, leisure wear and jeans. Characteristics: 1. Double needle clutch needle bar structure to ensure precision in turning, right angle, acute angle and straight sewing. 2. Synchronized fabric feeding of needle bar and feed dog to prevent fabric slip, fine adaptation to fabrics and nice in stitch. Fine adaptation to high quality double stitch and decorative sewing works. 3. Dramatically improve work efficiency. 4. Best design of outlook, interior structure, easy to maintain and use.