... sewing machine for leather suitcase sewing 2.Excellent structure design 3.Easy to operate JUKEON industrial sewing machinesJK-341 Cylinder bed unison feed cylinder industrial sewing machine for ... rotating hook, dog band for driving arm shaft and hook shaft, compound feed by presser foot, feed dog and needle, ... rows of teethSingle rows of teethFeed dog special for cloth Single rows of teethNeedle gauge ...