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How about nitrogen filled packaging?

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What is the nitrogen in nitrogen filled packaging? What’s the difference between this and vacuum packaging?

nitrogen in nitrogen filled packaging refers to nitrogen, that is, the gas with the largest content in the air. Of course, it has been separated and purified by air
the purpose of nitrogen filled packaging is the same as that of vacuum packaging, in order to prevent the corrosion of the contents
generally, when packing with nitrogen, the interior also needs to be vacuumized and then filled with nitrogen
after nitrogen filled packaging, the pressure difference inside and outside the packaging material is relatively small, and the gas transmission will be lower, which is more conducive to corrosion prevention.

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