Participants learn about corn seed products during the 7th Ningxia Seeds Expo held at Pingluo County of Shizuishan City, northwest China's Ningxia Hui Autonomous Region, July 27, 2020. (Xinhua/Wang Peng)
7th Ningxia Seeds Expo held at Pingluo County
Source: Xinhua| 2020-07-28 07:13:51|Editor: huaxia
