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Maintenance personnel must be familiar with the performance and working principle of the air leg rock drill

XY-3 Borehole Water Well Drilling Rig Online Machine Installation Maintenance Instruction

Recently, Mongolian businessmen visited China Coal Group again to try out the new type of turnout for the Mongolian railway project. This type of turnout is a new type of turnout specially designed fo

Jining Gongxin Business Vocational Training College Once Again Obtained The Aopa-Certified Civil Drone Pilot Training Institution Certificate

On July 12, China Coal Group's hot-selling product mining small excavator was loaded in the second workshop of intelligent equipment production and manufacturing, and then it will be sent to Tai'an Do

Recently, the construction project of the railway section from the Taben Tolgoi coal mine invested and constructed by a large group in Mongolia exported by China Coal Group Cross-border E-commerce Com