Tenders for Supply of Orifice Flange, 10 Inch Sch. 40, 300#, In Pair Without Plate With 2 Jack Screws And 4 Plugs, Orifice Flange, 6 Inch Sch. 40, 300#, In Pair Wnrf With 2 Jack Screws And 4 Plugs, Orifice Flange, 4 Inch Sch. 40, 300#, In Pair Without Plate, With 2 Jack Screws And 4 Plugs, Orifice Flange, 3 Inch Sch. 40, 300#, In Pair Wnrf With 2 Jack Screws And 4 Plugs, Orifice Flange, 2 Inch Sch. 80, 300#, In Pair Wnrf With 2 Jack Screws And 4 Plugs