... 1 High speed single needle flatbed lockstitch sewing machine is speciallydesigned for sewing heavy-duty fabric and leather. Compound feeding ... heavy material and thick-thread with smooth and quietness. Appliedfor sewing bags, luggage cases, sofa cushions, boxing gloves, leather ... productsetc.SL-TY8810/8820 Single/Double needle post-bed sewing machine with wheel-feed,needlefeed and driven roller presser ...