Yangın merdiveni kapısı Temel Açıklaması
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 maden materials and güç withstand flames up to 60, 90 and 120 minutes, depending on the area of use.Tamlanan bu devran dilimleri bir bapnın yangına ne kadar müddet dayanacağın�