(1) Treasures and non-paper files of central and provincial archives.
(2) Special collections of provincial or provincial libraries with more than 6,543,800 books.
(3) Audio-visual products warehouses with the construction area of central and provincial radio and television centers not less than 120m2.
(4) Treasures in large and medium-sized museums; First-class paper and silk cultural relics showroom.
In addition, the carbon dioxide fire extinguishing system can also be used in dipping tanks, melting tanks, rolling mills, generators, printing machines, oil-immersed transformers, hydraulic equipment, dry cleaning, drying and dust removal equipment, paint production lines, electrical aging rooms, pulverized coal warehouses, food warehouses, engine rooms and cargo holds of ships and other equipment and places. But because carbon dioxide is suffocating, the system can only be used in unmanned places; When it must be installed and used in places where people often live, appropriate protective measures should be taken to ensure the safety of personnel, but halon fire extinguishing systems of 12 1 1 and 130 1 are not allowed.