Ongoing Repair Of Fire-Resistant Treatment (Impregnation) Of Wooden Structures Of Attics And Roofs Of Buildings Of Piskivskyi Zzso I-Iii Degrees Named After P.G. Tychyny On The Street Nezalezhnosti, 74 In The Village. Sands Of The Nizhyn District Of The Chernihiv Region, Code Dk 021:2015: 77220000-8 Wood Impregnation Services.