Providing And Supplying Dual Plate Check Vale (Non Return Valve) Of Horizontal Turbine Pump No - 01 To 06 At Labhor Pumping Station And 200 Ah, 110V, Dc Battery-Backup Set At Labhor, Fatepur And Khed Pumping Station Of Hathmati Guhai Pipeline Project (With Buy Back Of Old Nrv And Old Battery Set )