Compound Feed Standard Hook Auto Oil Sewing Machine DS-8B-2A Product Description 1. The fully automatic circulating oil supply and lubrication system can greatly reduce the loss of parts and the noise generated during sewing. 2. Adopts sliding bar pick line, constitute a double lock stitch, upper and lower shaft with synchronous toothed belt transmission. 3. Presser foot, feed dog, needle feed and lever type stitch regulator. 4. High voltage foot pieces, high pressure foot clearance and stitch length cooperate with cylinder seaming machine. 5. Single needle, high speed, cylinder bed, vertical axis hook, compound feed and walking foot, reverse stitch, lockstitch machines. 6. Suitable for sewing heavy leather bags, luggage, mattresses, especially suitable for the bags around.