high production Uniwis brand up rotating 5 layer co-extrusion ld /hd extruder film machine Parameter Function The line can provide multi kinds of choices on material's application and fully embody functions of different levels. With performance of high strength, high tenacious, opening, moisture resistance, transparency, it is widely used in packing of staple products (chemical materials, food, chemical fertilizer), heavy packing bags, totes and basic material for printing and recombination.