Oil refinery of China's Hengli Petchem enters full operation

Staff members of the Hengli Petrochemical (Dalian) Refining Co., Ltd. monitor the operation of equipments on the Changxing Island in Dalian City, northeast China's Liaoning Province, May 17, 2019. The private-owned Hengli Petrochemical (Dalian) Refining Co., Ltd. achieved full operation in its 20 million tonnes per year refinery and chemical complex in Dalian, the company said Friday. (Xinhua/Pan Yulong)