The overlock sewing machine is also called the sidecar, the code side machine, and the bone car. It is generally divided into three lines, four lines and five lines. The main function is generally to prevent the seams of the garment from fluffing. The overlock sewing machine can be used not only for edging, but also for sewing T-shirts, sportswear, underwear, knitting and other fabrics. The overlock sewing machine can be cut and sewn at the same time. The stitches are like mesh and also suitable for elastic fabrics.