Shandong China Coal Group Drilling Machine Branch

Pneumatic pavement breaker is mainly used for cutting off layers, breaking soft ore, mining clay, destroying solid or frozen layers, breaking ice and other purposes. Pneumatic road crusher is a kind o

On the morning of August 4, Xi Yunge, Vice President of Jining Labor and Personnel Dispute Arbitration Court, Gao Laiyin, President of the Mediation Tribunal, Liang Yu, Vice President of the Mediation

On July 31st, Li Guofu, secretary of the Party branch of the Business School of Shandong University of Political Science and Law, Xie Minglei, deputy secretary of the Party branch, Dong Xuejin, deputy

The water well drilling rig should be inspected before use. First, conduct a geological survey to check whether the rig has secured the end of the wire rope. The inspection content of the wire rope in

Gasoline rock drills are indispensable mining machinery and equipment. Drill pipes and drill bits are accessories of gasoline rock drills, which have a great impact on the efficiency of gasoline rock

In order to strengthen the skill training of enterprise employees, comprehensively improve the overall quality of the staff, realize the standardization, institutionalization, and skill-based training