Uses: 3M1 for displaying and selling seafood and fresh meat; 3M2 is used to display and sell daily accessories such as beverages, dairy products, sausages and cooked food. 3H1 is used to display and sell a variety of fruits, vegetables and other foods. Features: (1) R404a refrigerant is used. (2) High efficiency evaporator is adopted to achieve the purpose of high efficiency and energy saving by increasing evaporation temperature and heat exchange. (3) International famous brand compressor, high refrigeration efficiency; Plug and play, easy to use. (4) The front height is low and the opening surface is large, so as to improve the display effect of food as much as possible. (5) In the case that the width of the refrigerator is certain, increase the width of the shelf as far as possible, improve the effective volume of the refrigerator. (6) LED lights are used. (7) The new high quality slow night curtain can be stopped at any position; Ultra wide edge width, reducing energy consumption caused by clearance; Plastic and cloth night curtains are optional. (8) Natural defrosting is adopted to reduce operating energy consumption. (9) Compact size, flexible and convenient.