Main products: aluminum foil bag, vacuum bag, shielding bags, aluminum bags, board vacuum bags, cooking food vacuum bag, nylon vacuum bag, anti-static bags and other packaging materials, metal. Filling the vacuum packaging is after vacuum evacuation, and then filled with nitrogen, carbon dioxide and other gases. Nitrogen is an inert gas, from the filling, so that the vacuum bag to maintain a positive pressure to prevent outside air from entering the bag bag, food plays a protective role. Carbon dioxide inhibit mold, bacteria and other microbial activity corruption action. Some, such as crispy or crunchy foods, food deformation take the oil, sharp edges or high hardness will pierce the vacuum bag and other food, after filling the vacuum packaging, vacuum bag inflatable bag outside pressure greater than atmospheric pressure, and can effectively prevent food crushing compression, distortion, and does not affect the appearance of bags and printing and decorating. With the promotion and development of small supermarkets vacuum packaging, and its scope will be more extensive, some will gradually replace the rigid packaging. Supply:, PET vacuum, vacuum complex, three-dimensional vacuum bag, anti-static shielding bags, three-dimensional shielding bag, shielding adhesive bags, hand bags shielding three-dimensional, three-dimensional aluminum foil bags, shielding bags, vacuum bag, organ shielding bags, anti-static PE bags, anti-static PE ziplock bag, three-dimensional anti-static PE bags, anti-static bubble bags, anti-static bubble envelopes, bags, anti-static foil bags, aluminum foil large vacuum bag, aluminum foil ziplock bag, handmade three-dimensional aluminum foil bags, nylon bags, nylon vacuum bag kraft bubble bags, bubble bags composite shielding film, aluminized composite bubble bags, conductive film composite bubble bags.