solid structure.
2. The sliding rod is used to take up the thread to form a double-thread lock stitch, and the upper and lower shafts are driven by a synchronous toothed belt
3. Presser foot, feeding cloth, synchronous needle feeding
4. High-pressure foot stroke, high-pressure foot lifting clearance and large stitch length, matched with cylindrical sewing table
5 Suitable for sewing heavy bags and suitcases