In 2016, Kaltsas Company, built the first building of known food chain in Diavata at Thessaloniki, with new insulation and waterproofing roof systems, a total area of 2600 sq.m.
2016 Insulating Kaltsas built the first building known food chain in Diavata Thessaloniki, with new insulation and waterproofing roof systems, a total area of 2,600 sq.m.