SJ-A Series Semi-Auto winder HD/LDPE Film Blowing Machine body is channel steel frame traction ... friction. SJ-A Series Semi-Auto winder HD/LDPE Film Blowing Machine The machinge body is channel steel frame ... industral fiml and agricultural film. Main Technical Variables: ModelSJ-A45SJ-A50SJ-A55SJ-A65Suitable MaterialLDPE,HDPE,LLDPELDPE,HDPE,LLDPELDPE,HDPE,LLDPELDPE,HDPE,LLDPEScrew Diameter ...