SOFIA (Bulgaria), December 6 (SeeNews) - A Bulgarian tie-up up comprising civil engineering companies Geostroy, Patstroy-92, Parishta i saorazhenia and Dimas has completed a 10.9 million levs ($6.2 million/5.6 million euro) rehabilitation of a 22.2 kilometres road section in northwestern Bulgaria, the country's Road Infrastructure Agency (RIA) said on Friday.Â