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. Also known as decompression vacuum packaging, is based on the principle of atmospheric pressure, the main role of the vacuum bag is oxygen, in order to help prevent food spoilage or deterioration. Vacuum packaging is to food packaging bag and oxygen within the cell by pumping deprived, so that microbial processes in the loss of "living environment". Vacuum food can prevent oxidation, the food does not taste, deterioration reduce the loss of vitamin A and C. Vacuum bagged product, taking the air bag, to maintain the purity of the original flavor of food, it has a metal barrier, but also to make the metal vulnerable to acids, alkalis, and other corrosive sulfur deficiencies, both transparency of glass, but also to overcome the shortcomings fragile glass, both paper portability, easy to damp paper and make up deficiencies, but has all the features of various plastic films. Used in a variety of raw food cooked food preservation.