Video PlayerClose
Guests attend the Shandong Port Petroleum Conference 2019 in Qingdao, east China's Shandong Province, Dec. 2, 2019. (Xinhua/Li Ziheng)
Guests attend the Shandong Port Petroleum Conference 2019 in Qingdao, east China's Shandong Province, Dec. 2, 2019. (Xinhua/Li Ziheng)