High School of tourism Sofia place Sofia, 182, Slivnitsa bul. public http://www.spgt.org/content/e801/index_bul.html
Lidera Trading place Sofia, Zaharna Fabrika, Kukush Str. 1 Building EnTel-TTT / former telephone plant /, ent. 2, floor 4 public http://lideratrading.net
Balkan Steel Engineering Ltd place Kazichene, 5 “Tsiklama” str. public http://www.balkansteel.com/en/
Balkan Steel Engineering Ltd place Kazichene, 5 “Tsiklama” str. public http://www.balkansteel.com/en/
HERSTELLUNG UND BEARBEITUNG VON STAHLROHREN UND PROFILEN aus Bulgarien place Varna, Hristo Samsarov str. №1 public https://www.steelimpex.eu/de
