31 020 of BDŽ between Simeonovgrad and Preslavets
Class 31 of BDŽ between Simeonovgrad and Preslavets
31 010 of BDŽ between Nova Nadezhda and Chernogorovo
31 008 of BDŽ between Radomir and Kopanitsa
Class 31 of BDŽ between Batanovtsi and Kopanitsa
31 012 of BDŽ at Bela Voda
31 009 of BDŽ at Kostinbrod
31 010 of BDŽ at Slivnitsa