Overhaul/Replacement Of Windows (Preparation Of Objects For The Heating Season And Energy Saving Measures) In An Apartment Building At Ul. Heroes Of The Dnieper, 45 (P.1,2,3,4,5,6) In Obolon District Of Kyiv (Dk 021: 2015 (Cpv) 45453000-7 Overhaul And Restoration)