Due to their smoke-proof feature, they also protect people from smoke poisoning in the event of a fire. These doors, also known bey emergency exit doors, of the fire department fire occupies a very large place in the regulation. It has been made compulsory to have it in many https://yangnkapsistanbul69135.blog2freedom.com/31163990/yangın-merdiveni-kapısı-yangın-merdiveni-kapısı