What are the coolers commonly used in refrigerated trucks?

Refrigerators of refrigerated trucks are made in China and imported brands. Commonly used refrigeration units in China are Xinhuatai, Binsen, Kelly, Xue Kai and Li Bing. Commonly used imported units are American Carrier and Cold King. Compared with domestic refrigeration units, the price of domestic refrigeration units is cheaper than that of imported units. The price of domestic refrigeration units is slightly higher, and the prices of other brands are similar. The price of carrier imported from the United States is similar to that of Lengwang.