... textile,daily-use articles and industrial products etc. 1.The machine adopts single screw to extrude the material,two die heads ... durable service. 3.The die head is plated with hard chrome,of screw mandrel type structure with even and smooth discharging,the blown ... center rewinding,which is driven by torque motor,with even and smooth rewinding ande asy roll changing Double Die head Film Blowing Machine