... PE film Co-extrusion Machine 1) adopts multi-layer co-extrusion machine head, 2)down-blowing water-cooling, Multi-layer PE film Co-extrusion Machine ... copolymerized PP as material, to produce packaging film and composite packaging material which are with properties of good ... printed, etc, to provide high-quality cheap plastic packaging film for food, agricultural products, medical, chemical, pesticide, ...