... fins, steel casing DescriptionAmmonia blast freezer evaporator is designed for large and small high and low temperature freezers, freezing and cooling rooms ... exchanging coefficients, large refrigerating output, safe use, long life, even blast, quick drop in temperature and energy-saving. It is the ... .2×44100×840×12401.95 Ammonia Evaporator For IQF And Blast Freezer