Shandong China Coal Group Drilling Machine Branch

The air leg rock drill is a highly efficient rock drilling machine. Air leg rock drill has the advantages of small size, light weight and low gas consumption. The air leg rock drill is widely used in

On the afternoon of January 8, Sun Fangjie, a lawyer from Shandong Deheng (Jining) Law Firm, and his team of five people visited China Coal Group to discuss the development of legal services in 2020 a

In order to implement the national big data strategy, include the "Guiding Opinions on the Development of Industrial Big Data" (Xinfa [2020] No. 67 of the Ministry of Industry and Information Technolo

Gasoline rock drills are able to adapt to many different geographical environments, not only in the plains, but also on the steeper slopes of cities and cities, and can work stably on the steep slopes

In order to thoroughly implement the national big data strategy, implement the "Guiding Opinions on the Development of Industrial Big Data" (Gongxin Ministry Xinfa [2020] No. 67), "Shandong Province I

Water well drilling rig are common drilling equipment. Due to the problems of operating environment and time, the loss will be relatively large. Therefore, frequent maintenance and maintenance are req