three-layer Co-extrusion Rotary Die-head film Characteristics:1.Die head is lauer type spiral mandrel, continuous 360, ... to the lies, such as length counting device, vertical cutting device, cooling water row pipe, film spreading roller, scrap ... . Air cooling device5. Manual Mechanics Screen Changer 6. Die Rotary Device Main ParameterMODELSD-3L45SD-3L50SD-3L55Suitable MaterialsLDPE LLDPE HDPE EVAWidth ...