1.Easier operation with adjustable stitch length by press button stitch regulating; 2.Skipping and broken of stitch is avoided due to silicon oil cooling and lubricating system; 3.Super-high speed operation,low noise and vibration to enhance firmness and wear because of using suitable presser foot and feed dogs; 4.Widely used to sew all kinds of jeans; 5.Using imported materials and high quality spare parts as key parts ensures machine high-speed running,efficient work and low noise.