1,Double winder 2 Rotary die head 3 Auto loader 4Double lip air ring 5Air shaft. Single screw double die Film Blowing Machine It is suitable for (HDPE), (LDPE) (LLDPE), which is widely used for packing foodstuff, garment, textile, daily-use articles and industrial products etc. 1, The machine adopts single screw to extrude the material, two die heads to blow the film. 2, The screw stem and ...