1.FOUR Automatic:automatic thread trimmer,thread-wiper,reverse-feed, presser foot lifter. 2.Directly drive, ... 1.BSL-9000D-9AK series with directly drive servo motor, quickly starting,exactly needle stopping position,this make the ... is featured with functions of automatic thread trimmer,thread-wiper,reverse-feed.3.BSL-9000D-9AK series with dry ... Directly Drive Lockstitch Sewing Machine with Servo Motor