Shandong China Coal Group Drilling Machine Branch

In addition, the rock drill can also be used as a breaker to break hard layers such as concrete. Then let the editor come to the eldest sister to introduce how the internal combustion rock drill is s

Recently, with the official approval of the State Intellectual Property Office, 7 companies under China Coal Group successfully obtained 30 national trademark registration certificates at one time. Am

Air-leg rock drill: suitable for wet rock drilling of medium-hard or hard rocks; centralized operating mechanism, flexible starting, air-water linkage

On July 16, a batch of Suspension mining single hydraulic props were loaded in the third and fourth workshops of China Coal Group's intelligent equipment production and manufacturing, and then will be

Gasoline rock drill is a tool used to mine stone directly. It drills blastholes in the rock formations so that explosives can be put in to blast the rocks, thereby completing stone mining or other sto

In order to better provide human resources services for enterprises and institutions and solve labor needs, China Coal Group invested in the establishment of Shandong Zhongwu Human Resources Service C