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UL Steel Fire Door

Among the steel fire doors, A-grade steel fire doors are the most powerful. Steel fire doors have good thermal insulation and smoking effects, reduce the entry and diffusion of tobacco poisons, and avoid the rapid death of trapped people due to inhalation of toxic fumes.

UL Steel Fire Door-ZTFIRE дари- дари оташнишонӣ, дари оташнашаванда, дари ба оташ тобовар, дари ба оташ тобовар, дари пӯлод, дари металлӣ, дари баромад