This machine series is a new product series of brand post bed lockstitch sewing machine. It is designed with compound feed mecha-nism and post bed. It has three sub models of single needle left-side stitching machine, single needle right-side stitching machine and two needle post bed compound feed machine, to meet different demands from the market. Spacious operating room, flexible rotation, smooth sewing and beautiful are all attributed to the post bed. With turningblock rotary hook's lip, it is more convenient to change bobbin This machine series are available for sewing car seat, bag and case, boots, handbags, etc.