Refrigerated truck transportation has been established with the advancement of science and technology and the development of refrigeration technology. It is a low-temperature logistics process based on freezing technology and using refrigeration technology as a means; It is necessary to use Cold King agents and pay attention to the transportation process, time control, transportation mode, and other logistics forms that account for a very high proportion of logistics costs.

1. Primary agricultural products: vegetables, fruits; Meat, poultry, and eggs; Aquatic products, floral products.

2. Processed foods: frozen foods, packaged cooked foods such as poultry, meat, seafood, ice cream, and dairy products; Fast food ingredients.

3. Other products: pharmaceuticals.

Due to the fact that the food cold chain is a supply chain system aimed at ensuring the quality of perishable food and maintaining a low-temperature environment as its core requirement, it has higher and more complex requirements than general room temperature logistics systems, and requires much larger construction investment, making it a massive system engineering project.

Due to the timeliness requirements of perishable foods, each link in the cold chain needs to have higher organizational coordination. Therefore, the operation of refrigeration machines in the food cold chain is always related to energy consumption costs, and it is closely related to the development of the food cold chain to effectively control operating costs.