The second-hand double lock keyhole machine

About Product:For knitted wool shirt fabrics, such as keyhole, keyhole machine generally use the needle rod swing, double curved needle, double fork needle hook line, double bag composite chain stitch seam. Elastic buttonhole sewing machine presser foot structure automatically adapt to different clamping fabric thickness. The operator can be very simple to exchange two cam to achieve a variety of shapes, size of the button hole. Automatic cutting device, which is convenient for operation, and is left with the required length of the seam, which is suitable for the beginning of the seam. The machine can be quickly cut into the back of the seam and the seam after the transfer.