Tss242 Blade Valve Complete With Flange And Control Column To Support The Construction Project: “Reconstruction Of The Spillway-Dam With Modernization Of The Building Of The Gonoles Hydroelectric Power Station On The Zaslavsky Reservoir, Minsk District, Zhdanovichsky S/S, District Of The Village Of Kachino” Iii Phase Of Construction In The Interests Of The State Enterprise “Gordorstroy”