Changshu food vacuum bag 1 structures: PET film / foil (vacuum aluminum) / adhesive layer / (Nylon) / PE film (black) 2. vacuum Thickness: 8-20 wire 3. vacuum product specifications: 200 -300 m / roll 4. The vacuum bag Features: moisture and oxygen barrier, rust, shading, shielding, antistatic, can be evacuated, glossy appearance, color and good effect. 5. Scope: Suitable for food and medicine pesticide electronic products, which can effectively prevent the product surface oxidation rust, peeling paint. Can effectively prevent the product to absorb moisture caking, oxidative deterioration and prolong its storage time. Food bags, food itself is the final process, its own role is to protect food quality and hygiene, without loss of original composition and nutritional convenient transportation, to promote sales, extend shelf life and enhance the important role of commodity value, and to some extent, food packaging has become an integral and important part of the food. Food packaging itself as a protective layer of food, has become an integral and important part of the food. Daily consumption of food as a special commodity, its nutritional health is extremely important, but easy to spoilage, food packaging as a means of protection, it must ensure food quality as commercial quality and safety and health in its circulation in the storage and transportation process.