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. Chi Shing Materials Co., Ltd. Kunshan, providing professional production: anti-static vacuum, vacuum, vacuum cooking, sealed in a vacuum bag, anti-static moisture-proof vacuum bag waterproof nylon vacuum bag, printing, food vacuum, high-temperature sterilization vacuum cooking (also known as nylon), with a transparent (oxygen) gas is low, the vacuum effect is good, high transparency, good moisture resistance, high tensile strength and puncture resistance, strength, easy to seal, sealing, and not aging, etc ...... Features. Mainly applied to food, electronic circuit boards, precision metal chemical can be custom made according to customer requirements: size, specifications, anti-static, high temperature and other functions can also be printed pattern such as product descriptions, company logo, etc., beautifully printed pattern, clear. 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 food oxidation, so the food does not taste, deterioration reduce the loss of vitamin A and C.