The core is equipped with an efficient vehicle specific refrigeration unit, supporting optional installation of domestic and imported units. The refrigeration temperature can be flexibly adjusted between 5 ℃ and -20 ℃, and the cab can adjust the temperature in real time to meet the cold chain needs of different types of goods - it can achieve the preservation and cold storage of fruits, vegetables, dairy products, deep freezing of meat and seafood, and can also adapt to transportation scenarios with strict temperature requirements such as vaccines and drugs. The refrigeration system operates stably, with a fast cooling rate that can quickly reach the set temperature and maintain a constant temperature, effectively locking in the freshness of the goods and preventing them from deteriorating due to temperature fluctuations during transportation. The refrigerated compartment adopts a fully sealed sandwich structure, with 2.8mm high-quality matte fiberglass on the outside and reinforced ribs with broken bridge insulation treatment on the internal skeleton. The middle is filled with high-density polyurethane foam material, which has excellent insulation performance and can effectively block external temperature conduction, reduce refrigeration energy consumption, and ensure long-term stability of the temperature inside the compartment. The bottom of the cabin is equipped with aluminum alloy anti slip patterned plates, which are easy to clean and anti slip and wear-resistant; The exterior adopts galvanized stainless steel corner wrapping and aluminum alloy edge wrapping. The rear door frame is made of stainless steel material, matched with thickened stainless steel hinges and locks, which not only improves the structural strength of the compartment, but also enhances the sealing performance to prevent cold air leakage. At the same time, the interior of the compartment is equipped with LED lighting strips, making it convenient to check the situation inside the compartment when loading and unloading goods.