three-layer Co-extrusion Rotary Die-head film Characteristics:1.Die head is lauer type spiral mandrel, continuous ... length counting device, vertical cutting device, cooling water row pipe, film spreading roller, scrap collecting device.Use:The lines are designed ... in the thickness packaging films, from LDPE, HDPE, LLDPE, MLLPE, by horizontal extrusion up blown. The film has good in solution, for ...