TEHRAN Jan 05 (Shana)--The capacity of gas transmission in Iran is expected to grow by 100 mcm/d once a gas pressure booster station becomes operational. Pol Kaleh station is 91% complete and is planned to come online for IRR 4 trillion. This station is being installed on Iran Gas Trunkline-4 (IGAT-4). The station, which is scheduled to come online ...