SL-7903DL is an improved machine based on SL-7903D, which is a new generation machine added with contiuous feed mechanism (X-Feed). The particular continuous feed mechanism can ensure the feed dog move above the needle plate alternately and smoothly, whatever the needle is working on its upper or lower position. This machine is widely used for sewing various materials, especially for light-weight materials, to achieve high quality sewing. SL-7903DL is the preferred machine for middle-high grade garments factories. Even have great stitch when sewing on the tissue.