... .3, This unit can adopt three extruders to coextrude to produce three-layer(A,B,C) or five-layer(A,C,B,C,A ... ) composite film.This unit also can produce monolayer,double-layer or three-layer plastic packaging film according to the customer requirements.4, This ... )100100100100Winding dia.(mm)φ600φ600φ800φ800 ZQ-3FM2500 2200mm Three-layer coextrusion full-automatic cast film machine