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Mainly used in the cold chain logistics industry for warehousing and transportation, the temperature is maintained within a specific requirement range (refrigerated 0~7 ℃, frozen below -18 ℃) through artificial refrigeration technology, extending the shelf life of food, drugs, and other products.

1. Food cold chain: mainly stores fresh meat, fruits and vegetables to reduce losses;

2. Medical cold chain: ensuring the stability of vaccines, biologics and other drugs;