... and easy to operate Industrial three needle sewing machine SM-341Single-needle unison-feed cylinder sewing machineThis machine adopts ... in stitching packages, toys, stationery and other similar goods.SM-9910/9920Single-needle/double-needle post bed with wheel feed ... shoes, high grade leather shoes and all kinds of cases.SM-810/820/815Single/ twin-needle postbed lockstitch sewing machineAdopts idler ...