Yanchang County ist eine stadt in China Shaanxi.
China's First Oil Well Shiyou Xiwang Primary School, Yanchang County 717100 China
the First Petroleum Well in China land Petroleum Hope Primary School, Yanchang County 717100 China
Yan'an First Well of China Mainland (+86 911 861 2081) Within Yanchang County, Yanchang County 717100 China