... fabric 3.high speed straight stitch sewing 4 in 1 sewing machine SM-20UZigzag sewing machineDifferential gear ... stable. It can sew in the method of beeline, zigzag, figure and spelling on the thin, medium-thick ... bra, shoes, caps, gloves, embroideries, and so on.SM-341Single-needle unison-feed cylinder sewing machineThis machine adopts ... children's shoes, riding boots and so on. 4 in 1 sewing machine