Refrigerated trucks, Refrigerator Truck, Freezer Truck by walking part of the special purpose vehicle chassis, and heat insulation heat preservation box body (generally consists of polyurethane materials, glass fiber reinforced plastic, color steel plate, stainless steel, etc.), refrigeration unit, temperature recorder in carriage parts, such as vehicles for special requirements, such as hook, hook can be mounted to the flesh, the middle, aluminum alloy guide rail, ventilation slots and other options.