App
Staffers check the metering zone of the injection-production station of Wen 23 Gas Storage, in Central China's Henan province, on Oct 17. [Photo/Xinhua]
Staffers maintain a compressor at the injection-production station of Wen 23 Gas Storage, in Central China's Henan province, on Oct 17. [Photo/Xinhua]
A drone photo shows staffers checking the metering zone of the injection-production station of Wen 23 Gas Storage, in Central China's Henan province, on Oct 17. [Photo/Xinhua]
A drone photo shows the injection-production station of Wen 23 Gas Storage, in Central China's Henan province, on Oct 17. [Photo/Xinhua]