The most popular research in India is to replace m

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An Indian food company uses multilayer film to replace metal packaging food, which not only reduces the packaging cost, but also has good preservation and corrosion prevention effect. Multilayer film is composed of polyester film, aluminum film and polypropylene film. It is used for food packaging, which not only ensures that soft users can easily distinguish the strength of packaged cans, but also prevents light leakage and oxidation. It is said that sardine are packed with multi-layer film and have a storage period of more than two years. Stone can also be used to make paper

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