Replacing Operation of 15km of First Nationwide Pipeline Coating (465-480Km) Replacing Operation of 15km of First Nationwide Pipeline Coating (465-480Km) Replacing Operation of 15km of First Nationwide Pipeline Coating (465-480Km) Replacing Operation of 15km of First Nationwide Pipeline Coating (465-480Km) Azarshahr-Miandoab 20” Gas Pipeline Azarshahr-Miandoab 20” Gas Pipeline Engineering, Procurement and Installation and Commissioning of Bidboland Gas Engineering, Procurement and Installation and Commissioning of Bidboland Gas Engineering, Procurement and Installation and Commissioning of Bidboland Gas Firouzkouh-Damavand 16'' transmission line (Zone 1) Firouzkouh-Damavand 16'' transmission line (Zone 1) Firouzkouh-Damavand 16'' transmission line (Zone 1) Firouzkouh-Damavand 16'' transmission line (Zone 1) Firouzkouh-Damavand 16'' transmission line (Zone 1) Replacing Operation of 10km of First Nationwide Pipeline Coating Replacing Operation of 10km of First Nationwide Pipeline Coating Replacing Operation of 10km of First Nationwide Pipeline Coating Replacing Operation of 10km of First Nationwide Pipeline Coating MAHIDASHT-RAVANSAR 20 MAHIDASHT-RAVANSAR 20 MAHIDASHT-RAVANSAR 20" GAS PIPELINE Construction and Piping of Maroun Gas Field Construction and Piping of Maroun Gas Field Construction and Piping of Maroun Gas Field Construction and Piping of Maroun Gas Field Construction and Piping of Maroun Gas Field Replacing Operation of 15km of First Nationwide Pipeline Coating (Golpaigan) Replacing Operation of 15km of First Nationwide Pipeline Coating (Golpaigan) Replacing Operation of 15km of First Nationwide Pipeline Coating (Golpaigan) Replacing Operation of 15km of First Nationwide Pipeline Coating (Golpaigan)