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Shandong China Coal Group hosted 2018 new employees training seminar to help new employees better understand the development process of China Coal Group

Gas and water Malfunction failures of air leg rock drill are mainly due to: high water pressure, gas and water blocked, water valve spring failure, leakage, leakage, apron failure, parts of the valve

The reason for the formation of air leg rock drill water needle fault: The center hole of the shank is not correct, the gap between the shank and the shank is too large, the water needle is too long,

on the morning of September 29, the "China Association For Science And Technology Haizhi Experts Promoting Jining Innovation & Development Project Fair" jointly organized by the Jining Association for

The Association of Taiwan Investment Enterprises on the Mainland leaders, totally 24 persons came to Shandong China Coal Group e-commerce industrial park for investigation, China Coal Group Executiv

Shandong China Coal Group Chairman and General Manager Qu Qing attended 13th Standing Committee Meeting of Jining City Federation of Industry and Commerce