This model is an upgraded product of GULI GL-0330S-D3. This model adopts a horizontal tubular working platform with small diameter and easy to use. This model adopts the link type feeding structure, which has good durabillity and is delivered. Material balance, for the bulk-type sewing material and the medium-thickness sewing material with large submergence, the feeding amount of the upper and lower layers can be consistent during the sewing process. Use bullt-in integrated computer control technology, Stable performance and strong anti-interference abillity, The use of a large rotary hook reduces the number of bottom line changes and improves work efficiency: the use of fully automatic lubrication devices improves the service lifle of the machine. With optional voice Broadcast, USB socket, new double action knife timming structure, sealed bottom oil pan, automatic needle position, automatic needle number, automatic counting needle stitching, electronic clamping line, bult-in automatic lfting A variety of smart sewing modes such as feet. Suitable for sewing medium thick materials, football, bags, leather, leather products, sofas, etc.