Dea – 42344 For The Project: Supply Of Materials And Complete Construction Of Enaeria G.M. 150 Kv Y/S Sfikias – Tap Aeginiou, Installation Of Opgw Type Protection Conductor In Gm 150 Kv Y/S Polyfytou – Y/S Sfikias & Parallagi G.M. 150 Kv Sifikia Substitute - System (Thessaloniki Ii - Ptolemaida) Underground Section Near Sifikia Substitute