three-layer Co-extrusion Rotary Die-head film Characteristics:1.Die head is lauer type spiral mandrel, continuous ... vertical cutting device, cooling water row pipe, film spreading roller, scrap collecting device.Use:The lines ... LLDPE, MLLPE, by horizontal extrusion up blown. The film has good in solution, for instance holding temperature, ... three-layer Co-extrusion Rotary Die-head film blowing machine