... can reference to client. 1. Longer cold storage time, 2~3 times of ordinary cold room. 2. Better fresh-keeping effect. ... also microorganism. Coldroom or Cold Room, Colding room, Cold room, coldroomStructures as follow: coldroom, cold room1. Refrigeration system: Compressor, condenser, evaporator, refrigerant2. ... -preservation system: Wall, ceiling, terrace4. Air-conditioned system. cold storage