This machine is installed in cylinder type lower differential band intopacket sewing machine, T-shirts, knitted puller collar sewn into the process of any person who is extremely easy to sewing, before entering type lower differential into the seam. This machine is widely used in clothing, underwear, bedding, and thin leather products such as packaging and take all kinds of fabric seams, decorative sewing, in addition to a variety of stitch options avilable.