Auto thread trimmer, auto presser foot lifter, auto sweep thread and curling folder, use synchronous feeding device, upper-lower puller and needle feeding to prevent the dense stitch on joint, cylinder bed is more suitable for sewing hemming on trousers, dense stitch when eding to prevent off-line. Interchange between lockstitch and chainstitch, realize two different stitches by change the hook and looper to meet the demands of different precesses. Suit for hemming of jeans, casual pants and such other trousers.
