Ongoing Repair Of Fire-Resistant Treatment (Impregnation) Of Wooden Structures Of The Attic And Roof Of The Ozeryanskyi Zzso I-Iii Degrees Building On St. Nezalezhnosti, 1 In The Village. Ozeryany, Nizhyn District, Chernihiv Region, Code Dk 021:2015: 77220000-8 Wood Impregnation Services.