Model Number: GK430 Brand Name: MEC Key Specifications/Special Features: Features:1, 2-needle, 4-thread double chain stitch seam2, High sewing speed, up to 4000 stitches per minute3, Low noise4, Simple to adjust stitch length5, Semi-automatic lubricationApplication:This machine is suitable for lightweight materials and medium weight materials such as shirts, coats, jeans and slacksWith special feed-off-the-arm, it's specially designed to accept join-sewing for sleeve and trouser's tubular section