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Pneumatic Rock Drill or air leg rock drill is one of the toughest and difficult to manage tools used in the construction industry to demolish old concrete. The pneumatic rock drill itself is really he

The rock drill machine''s work adhere to the principle of impact crushing. When the high frequency piston reciprocating motion, continue to impact drill tail. The impact force under the action of a wed

China Coal Group Invited to Shandong Province Economy and Information Technology Commission Adjudication Meeting of Focusing on Cultivating the E Commerce Platform

Warmly Congratulate China Coal Group Chairman Qu Qing on Awarding Shandong 2016 IOII Advanced Personal Honor

High-tech Zone 2016 Foreign Christmas Sodality invited China Coal Group

China Coal Group Sucessfully Selected Into The Integration of Informatization and Industrialization Typical Enterprises List