A film making machine is a device used to produce plastic films by extruding and cooling molten plastic. It typically consists of an extruder, a die, and a cooling system. The machine can produce various types of plastic films, including polyethylene (PE), polypropylene (PP), and polyvinyl chloride (PVC) films. The films are used in various applications such as packaging, agriculture, construction, and more. The machine can be customized to produce films of different thicknesses, widths, and materials, making it a versatile tool for various industries.