On December 28th, a research group led by Chu Zhihua, the director of the People's Congress Studio in Jining High tech Zone, Jiang Kaide and Xu Enxiu, the deputy directors of the People's Congress Stu
© Shandong China Coal Group. © 2016
Address:No. 11, North of Kaiyuan Road, High-tech Zone, Jining City, Shandong Province, China
Executive Editor: Linda Zhang