Rotary Head Film Extrusion Machine LDPE, HDPE, LLDPE, MLLPE Three-layer Common-Extruding Rotary Die-Head Film Blowing MachineCharacteristics:1.Die ... extrusion up blown. The film has good in sudation, for instance holding temperature, anti-humid, ant-breeze, anti-rain ... insulation oxygen, oil resistive, and so used for light and heavy-duty packaging, for example fresh fruits, meat-feeding, salt ...