Ivaylovgrad
English translation is in progress or not avaiable.
Sofia
English translation is in progress or not avaiable.
English translation is in progress or not avaiable.
Tvarditsa
English translation is in progress or not avaiable.
Troyan
English translation is in progress or not avaiable.
Silistra
English translation is in progress or not avaiable.
Yambol
is established in 1997. It develops in two main fields – production and trade with thermo insulating materials used in construction and energy branch.
