The car refrigerator has a wide range of applications in the market. It can be used for food storage, beverage cooling, medical storage, and many other purposes. It is also widely used for outdoor camping and picnics, providing users with a convenient and reliable source of cold food and drinks. Additionally, the car refrigerator is also used in commercial settings, such as catering establishments, restaurants, and food stores, to help keep food fresh and safe.

The materials of the car refrigerator depend on the specific requirements of the product, such as size, temperature, performance, and cost. Generally, the materials used for car refrigerators include high-quality plastic, stainless steel, and aluminum alloy. High-quality plastic has better insulation properties and is relatively lightweight, while stainless steel and aluminum alloy have good heat dissipation performance and are more durable.

Car refrigerator can not only store food and drinks, but also has the following functions:

1. Temperature Control: Car refrigerator can be set to different temperatures, so that food and drinks can be kept at the optimal temperature.

2. Safety Protection: The car refrigerator has built-in temperature control and temperature protection, which can automatically cut off power when the temperature is too high or too low to ensure safety.
3. Anti-vibration: The car refrigerator has a built-in shockproof system, which can effectively reduce the noise and vibration caused by the vibration of the vehicle during driving.
4. Low Power Consumption: The car refrigerator has a low power consumption, which can effectively reduce the burden on the car battery.

5. Portable: The car refrigerator is light in weight and small in size, which can be moved and used in different places.