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 responsibility of undertaking company Along with the Most up-to-date and State-of-the-art businesses of the worldwide economic climate, generally considers the quality and