... ceiling air cooler is Freon refrigeration units, can be used for the food fresh, cold storage and quick freezing etc. 1 ... . They are divided in different groups by temperature, the H group, for 0, ~ below -35 requirement by 4, 6, 8.5, 10mm ... reliability.2. Main componentsWorld famous brand refrigeration parts are employed for all products:World leading brand low temperature motor;The cabinet ...