Shandong China Coal Group Drilling Machine Branch

Air leg rock drills are used in many fields, but improper operation may not only reduce the operating efficiency, but also may be dangerous. Therefore, the correct operating procedures for air leg roc

On May 17, the original CCTV Western Channel Planning Director, United States Steiger Technology Co., Ltd. Global Strategic Planning Chief Expert Zhang Pusui, United States Steiger Technology Co., Ltd

The drill bit of the roof bolt machine is the main component of the drilling machine. It is a tool for transmitting impact energy, directly contacting the rock and blasting. During the whole operation

Recently, Comrade Qu Qing, Chairman of the Group, has been awarded two honorary titles of "Excellent Entrepreneur of Jining City" and "Excellent Entrepreneur of Jining High-tech Zone" in 2019 for his

Enterprise development, environmental protection first. Recently, after strict evaluation by the ISO14001 environmental management system expert group, the environmental management system of Shandong

In order to further implement the innovation driven development strategy, promote the transformation of new and old driving forces and the high-quality development of manufacturing industry, guide and