YIOULA Group is the biggest glasswork industry in Balkans. Its companies are in Greece ( Yioula SA and former Cronos SA ), in ... Bulgaria ( Drujba SA and former Stind SA ), and in Romania ( Stirom SA ). The group products are on glass drink bottling, glass food packaging, glass tableware, bottles, containers, tumblers etc. YIOULA Group has cooperation on glass technology with OWENS ILLINOIS. read more