Cold storage facilities are mainly built near food factories, areas with concentrated sources of goods, and fishing bases.They are usually an important component of fish processing plants, meat processing plants, poultry and egg processing plants, dairy processing plants, vegetable processing plants, and other enterprises. Cold storage facilities are mainly built near food factories, areas with concentrated sources of goods, and fishing bases. They are usually an important component of fish processing plants, meat processing plants, poultry and egg processing plants, dairy processing plants, vegetable processing plants, and other enterprises. This type of cold storage is equipped with corresponding slaughter workshops (slaughtering pigs, cows, sheep, chickens, ducks, etc.), sorting workshops (sorting aquatic products, fruits and vegetables, etc.), processing workshops (processing edible oil, marinated meat, cooked food, by-products, sausage casings, medicines, etc.), quick freezing rooms, refrigeration rooms, etc. After cold processing here, the food is stored for a short period of time before being transported to the sales area, or directly exported or sent to a distribution type cold storage for longer storage.