The machine is a single extruder film complex unit, one layer at a time extrusion film. Mainly to paper, plastic film, non-woven fabric or aluminum foil as the base material, through extrusion casting film, so that one or two kinds of substrate film r or composite, such as disposable paper cup film, non-woven film, etc. Machine purpose: extrude salivating film and paper (kraft paper, cup paper, high-quality k paper), cloth, metal foil, plastic film and other synthetic materials. Widely used in dry paper plastic composite, plastic composite, aluminum composite, non-woven aluminum film, paper aluminum composite, etc.