We provide high barrier composite films with different structures in rolls, which can be used as air-conditioned packaging films. This high resistance diaphragm can effectively reduce the permeability of water and oxygen, so as to help you perfectly control the gas composition in each package, provide the best storage conditions for your products, reduce the oxidation and corruption of products, and extend the shelf life of products. For example, nitrogen washing is often used in food and beverage packaging to reduce the oxygen content in the packaging, so as to delay corruption. In the packaging of drugs and dietary supplements, it is often necessary to strictly control the moisture and oxygen content through the air-conditioned packaging film, so that consumers can store them in the medicine cabinet for a longer time. In addition, the packaging of snacks, coffee beans, fresh fruits and vegetables and other products often use air-conditioned packaging film.