CERTIFICATES     Türkçe     Global Economic Crisis Ak-taş and Ekin Kimya's staff attended on “ Global Economic Crisis” seminar on January 24th,2012 introduced by Dr.Yasar ERDINC....   ISO 9001:2008             ISO 14001:2004            OHSAS 18001:2007                Copyright © 2011 AK-TAS DIS TIC. A.S.