... DETAILS Speed(sec/bag):6-7 Seam:Single Thread Chain Stitch Stitch Range(mm.):8.5(fixed) Revolution(rpm,):1,700+200 ... .C.12V,24V. , D.C. (specify one.) 50-60Hz,Single Phase3.The wear of machine components is reduced and the service life ... you a nice impression of modern artistic design;5.TANI Sewing Machine Parts Quality Assurance.Advantages:Ningbo Heyu International Trading Co., Ltd ...