Tenders for Th/Mes/Dvn/21/D1-379-4078-120 Lining Up Of Contract For Replacement Of 18 Inch Pipe Line From Hpgv Take Of Tray To Ft-702 Line-I And Ii And Replacement Of 20 Inch Sch 60 Elbow In Gv Section Line I And Line Ii Of Lining Up Of Contract For Replacement Of 18 Inch Pipe Line From Hpgv Take Of Tray To Ft-702 Line-I And Ii And Replacement Of 20 Inch Sch 60 Elbow In Gv Section Line I And Line Ii Of Ammonia Plant.