... 29mm singel needle ,PP woven bag ,industrial sewing machine Applications FGB4-1 singel needle ,PP woven bag , industrial sewing machine adopts single-needle and ... FGB4-1 singel needle ,PP woven bag , industrial sewing machine is suitable for sewing PP woven bag with super-thick, medium and ... /230/250/300Working Space220X420mmLubricationManual singel needle ,PP woven bag ,industrial sewing machine