Uses: For display and sale of frozen fish, frozen meat, frozen packaged food and frozen ice cream. Features: (1) Using R404a/R744 refrigerant. (2) High efficiency evaporator is adopted to improve the cooling capacity and achieve the purpose of high efficiency and energy saving by increasing the evaporation temperature (to -30℃). (3) Each refrigerator is equipped with a solenoid valve, which can reduce the construction difficulty, shorten the construction period, and reduce the risk of fouling caused by internal dirt as far as possible. (4) Large insulating glass makes the front height low and improves the display effect as much as possible. (5) The glass cover design adopts the anti-condensation coated glass with push-pull structure up and down, and the humanized design does not affect the purchase of customers. (6) According to the requirements of customers, high-efficiency energy-saving fans can be adopted to achieve more energy saving. (7) The refrigerator is suitable for wall protection or large stores back-to-back to form an island style, customers can choose freely according to their needs.