Kyustendil
English translation is in progress or not avaiable.
Varna
English translation is in progress or not avaiable.
The subject of activities is: carrying-out projects in railway automation, point heating, radio sound wiring of railway stations, isolated sections and railway transport connections. Later on the range of activities is expanded as follows: design, develop
Sofia
English translation is in progress or not avaiable.
Sliven
English translation is in progress or not avaiable.
