A model of a Christmas tree, an assembled set of valves, spools, and pressure gauges installed on top of an oil wellhead to control and regulate the flow of hydrocarbons during production, is displayed during the Kazan Oil, Gas and Chemistry International Petrochemical Exhibition at the Kazan Expo Exhibition Centre outside Kazan, Republic of Tatarstan, Russia.
- Categories: Science & Technology, Economy, Business & Finance
- Location: Kazan, Russia
- Event date:
- Date published:
- Author: Maksim Bogodvid
- Credit: Sputnik
- Source: Sputnik
- Original: Digital
- Media: JPEG, 3691x2521px, 4.4Mb
- Job-ID: d33b7d511294192a