... Multi-layer PE film Co-extrusion Machine 1) adopts multi-layer co-extrusion machine head, 2)down-blowing water-cooling, Multi-layer PE film ... co-extrusion down-blowing water cooling film blowing machine adopts multi-layer co-extrusion machine head, down-blowing ... sealed, printed, etc, to provide high-quality cheap plastic packaging film for food, agricultural products, medical, chemical, pesticide, ...