People select painting works in Gongbi style at an exhibition hall in Hequ Township of Ningjin County, north China's Hebei Province, May 23, 2018. Ningjin has over 30 villages with characteristics of Gongbi painting and nearly 6,000 related employees. The Gongbi painting works of the county are popular across the country and have been exported to Singapore, Japan and the Republic of Korea. (Xinhua/Zhu Xudong)