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 continues on its way Together with the accountability of carrying out enterprise with the Most recent and Innovative corporations of the global financial state, always considers the standard and gratification i