... 3. IBC (Internal Bubble Cooling) 3 Layer Film Extrusion MachineUsage: 3 layer co-extrusion film blowing machinery is used for blowing with ... heat shrinkable film, tire separation membrane, anti-aging multi-functional film, anti-jamming membrane, impermeable film, stretch film, ... photoeclectric control5) Full automatic central winding system with auto tension control6) High-Speed screen changer by ...