This FD-BM800-V five layers coextrusion blow film extruder machine can produce various kinds of film. according to different raw materials and processing technology which has the function such as resisting high temperature, resisting low temperature, cooking, hot enveloping and printing, etc. It can produce following composite film: A/B/C/D/E,A/B/C/B/A,A/B/C/D/C etc. The composition can be changed freely, the calculated parts can calculate exactly, so can reach the aim to save the expensive material. So it is the ideal equipment to produce five layers film of PA,EVOH,PVDC material.