sewing machine It mainly used in sewing thick thread, thick material and super-thick material for contain bag, shoemaking, sofa. Sewing machineCharacteristicsNew degisn,slidinglever take-up thread,big hook.It has a special compound feed system (feed dog,needle,and presser foot),long sresser foot stroke,high presser foot lift and long stitch length,so that can keep no slip between the top and ...