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 with the obligation of doing business Using the most modern and Sophisticated businesses of the global economy, always considers the standard and pleasure it offers to its consumers as its m