three-layer Co-extrusion Rotary Die-head film Characteristics:1.Die head is lauer ... thickness packaging films, from LDPE, HDPE, LLDPE, MLLPE, by horizontal extrusion up blown. The film has good in solution, for instance ... , insulation oxygen, oil resistive, and so used for light and heavy-duty packaging, for example fresh fruits, meat-feeding, salt vegetables ...