Z tipi yangın merdiveni ismini dokumalış şeklinden allıkır. Z tipi yangın merdivenleri özellikleri; 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 emanet withstand flames https://collinfdzuo.bloggazza.com/30423319/İstanbul-ucuz-imalatçı