BANJA LUKA, MEŠE SELIMOVIĆA 50 A
   tel. ++387(0)51 211 447, tel/fax ++387(0)51 203 223
      LAKTAŠI, Karađorđeva bb
         tel. ++387(0)51 833 062, 832 244
            e-mail: extrol@blic.net
               web: www.medna.net/tehnosint/extrol