... line by exterior adjustment of thread, through the right and left self-governed spring as well, with two straight ... -lubricating vertical-axis rotating hook for catch thread loops and sliding can thread take up, self-lubricating can produce ... of materials, suitable for stitching shirt, uniforms, underwear and jean, etc.SPECIFICATIONS AND INDEX: MODELNEEDLESTITCH NUMBERNEEDLE GUAGE(MM)STITCH LENGTH (MM ...