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Противопожарная заслонка, огнезадерживающий клапан
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Fire damper, английский
A damper which closes off an air duct automatically in the event of fire so as to restrict the passage of fire and smoke. fireback 402 fireback of cast iron fire damper exterior walls which are subject to severe fire exposure from outside the building; classes e and f: 3?4 hr; doors, shutters, or windows in exterior walls which are subject to moderate or light fire exposure respectively from outside the building.
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Система обнаружения пожара, русский
Fire damper, английский
A damper which closes off an air duct automatically in the event of fire so as to restrict the passage of fire and smoke. fireback 402 fireback of cast iron fire damper exterior walls which are subject to severe fire exposure from outside the building; classes e and f: 3?4 hr; doors, shutters, or windows in exterior walls which are subject to moderate or light fire exposure respectively from outside the building.
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