People visit the 24th International Oil, Gas, Refining & Petrochemical Exhibition in Tehran, Iran, on May 1, 2019. [Xinhua/Ahmad Halabisaz]
People visit the 24th International Oil, Gas, Refining & Petrochemical Exhibition in Tehran, Iran, on May 1, 2019. [Xinhua/Ahmad Halabisaz]
People visit the 24th International Oil, Gas, Refining & Petrochemical Exhibition in Tehran, Iran, on May 1, 2019. [Xinhua/Ahmad Halabisaz]
Iran's Oil Minister Bijan Zanganeh speaks during the opening ceremony of the 24th International Oil, Gas, Refining & Petrochemical Exhibition in Tehran, Iran, on May 1, 2019. [Xinhua/Ahmad Halabisaz]
People visit the 24th International Oil, Gas, Refining & Petrochemical Exhibition in Tehran, Iran, on May 1, 2019. [Xinhua/Ahmad Halabisaz]
Editor:Cherie
