visit

On the morning of October 16, National Mining Product Safety Mark Center Changsha Inspection Institute expert Ji Guangzhou, Yu Hongwei and Yang Jintao, visited China Coal Group for on-site inspection

On the morning of September 29, Guo Jinshan, Deputy Director of the Network Supervision Department of the Shandong Provincial Market Supervision Bureau, and the Jining City Market Supervision Bureau D

In the afternoon of September 5, Wang Jianwei, Director of the Department of Integration and Promotion of the Ministry of Industry and Information Technology, and Li Yonghua, Director of the Software

On August 17, the ISO9000 quality management system certification expert group visited Shandong China Coal Group to conduct the annual audit of ISO9000 quality management system certification.

On the afternoon of August 1, Vietnamese merchants and their entourage visited Shandong China Coal Group E-Commerce Industrial Park to conduct visits and inspections on railway equipment procurement a

On the morning of August 1st, Zaozhuang Science and Technology Vocational College Information Engineering Department E-commerce professional outstanding students visited the China Coal Group E-Commerc