1)double needle lockstitch machine,双针平缝机2)parallel double-needle flat bed sewing machine,平行双针平缝机3)flat bed two needle lockstitch sewing machine,双针锁式线迹平缝机4)double-needle swing quilter,双针摆缝机5)two-needle sewing machine,双针缝纫机6)butt seaming and felling machine with single needle,平缝单针折缝机
