three. Yal?t?m ve Yang?n Güvenli?i: Yang?na dayan?kl? kaplamalar ve ?s? yal?t?m? sa?layan malzemeler tercih edilmelidir.Çelik Yap?, which proceeds on its way Together with the duty of doing organization Using the Most up-to-date and Sophisticated organizations of the global economic system, usually considers the quality and fulfillment it offers