film blowing machine

2SJ Series Double Layer Co-Extrusion Rotary Film Blowing Machine Model No. 2SJ-50 2SJ-55 2SJ-60 Screw Diameter 50mmx2 55mmx2 60mmx2 Screw Ratio(L/D) 30:1 30:1 30:1 Max.Folding Width of Film 1000mm