In order to commend the advanced and establish a model, on the afternoon of February 4th, the 2020 annual summary and commendation meeting of China Coal Group was held in the group. China Coal Group C
The main reasons for the decrease in rock drilling speed of air leg rock drill are low air pressure in the working environment, poor lubrication of the machine, insufficient air leg thrust, poor expan
Recently, Comrade Qu Qing, Chairman of China Coal Group, was once again awarded the honorary title of “Advanced Individual in Shandong Province for the Integration of Informatization and Industrializa
Gasoline rock drill 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.
Water well drilling rig are suitable for water well drilling, geological survey, geological core drilling, small grouting holes, blasting holes for railways, water conservancy, bridges, dam foundation
In order to further promote the development of big data and information technology-related industries, and provide intellectual support for the improvement of quality and efficiency of enterprises and
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Executive Editor: Linda Zhang