MA

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

Malaysian Businessmen visited Shandong China Coal Group for long-term strategic cooperation on borehole drilling rig

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 and Shandong Mingde Gangcheng Machinery Co., Ltd. Held Strategic Cooperation Signing Ceremony in China Coal Group e-commerce Industrial Park

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

Business Etiquette Training was Held by Jining Industrial And Information Commercial Vocational Training School in order to further enhance the team's business reception ability, establish a good cor