Our seven layer co-extrusion blown film line is a multi-layer co-extrusion blown film line that can produce 1,600mm film width with a thickness within 0.35～0.20mm. The line is equipped with a stacked die head, IBC (internal bubble cooling system), sizing cage and collasper and 360o horizontal reversing haul-off. The line has incorporated high-tech (patented) PROFIBUS technology for computer centralized control as well as advanced technologies such as a pressure melt sensor, temperature sensor, automatic web guide and automatic surface wind. The line is made to process PA, EVOH, mLLDPE, LLDPE, LDPE, EVA and adhesive resin materials in order to produce various multi-functional film, especially high-barrier film with strong barrier, sealing transparency, photophobic, retort, heat sealing and printing performance. Our film can be used as a plastic packing material to store various foods, agricultural products, medical apparatus, pesticides, chemicals, daily use articles and war industry articles. Inner packing: wooden case or nude cargo Outer packing: container