The engineering bureau "Donit OÜ" was established in 1992. The main activity is designing, developing , repairing and manufacturing the machinery parts for public transportation as well as for railway transportation. Our product list covers over 75 different types of machinery parts including trunnions, wheel hubs, support arms, stabilizers, etc. All repair work is done by highly qualified specialists. Our partners include main Estonian public transport agencies: AS ТАК, AS Sebe, etc.