... popular,hign efficiency 3.automatic,hign quality 4.Easy to operate Professional blown film extruders machine ... structure, melting material extruding evenly, and blowing film smoothing etc. Cooling equipment is a labyrinth blow ... to adjust, has the merits of smooth film, convenience operation.Main technical parameters: TypeFDSJ-40FFDSJ ... 3.3 m5.2*2.1*3.4 m5.3*2.2*3.5 m5.4*2.3*3.6 m Professional blown film ...