three-layer Co-extrusion Rotary Die-head film Characteristics:1.Die head is lauer type spiral mandrel ... blown. The film has good in solution, for instance holding temperature, anti-humid, anti-breeze ... insulation oxygen, oil resistive, and so used for light and heavy-duty packaging, for example fresh fruits, meat- ... 6.58.2*5.8*7.29.0*6.4*8.2 three-layer Co-extrusion Rotary Die-head film blowing machine ...