Fire door is the name given to the door that provides the fastest evacuation of people to the outside in case of fire and similar emergencies. They are produced using metal materials and kişi withstand flames up to 60, 90 and 120 minutes, depending on the area of use. 30 https://yangnkkaps80257.blogscribble.com/31975549/değil-hakkında-gerçekler-bilinen-yangın-merdiveni-kapısı