1, frozen food, ice cream, frozen jiaozi, frozen meat, frozen seafood and other products suitable for frozen storage or frozen consumption.

2, frozen food, yogurt, dairy products, fresh fruits and vegetables, meat, seafood and other foods that need to be preserved at low temperature.

3. Cold drinks, drinks, fruit juice, cold drinks, popsicles, etc.

4. Refrigerate cakes, cakes, buttered bread, puddings and other pastry products that need to be preserved at low temperature.