CE

On December 30, a batch of single hydraulic prop equipment for mining is loaded in the intelligent equipment manufacturing workshop of China Coal Group and will be sent to a mine in Yibin City, Sichua

In accordance with the spirit of the "Administrative Measures for the Recognition of Leader Enterprises in Shandong Province" (Lu Gongxinfa [2020] No. 8) and the "Notice on Organizing and Declaring Le

In order to implement the "Guiding Opinions on Carrying out Quality Improvement Actions" of the Party Central Committee and the State Council and the new requirements of the provincial party committee

The thickness of the concrete protective layer is insufficient, and the external harmful medium easily penetrates the protective layer to reach the surface of the steel bar, causing the steel bar to r

How to increase the waste detector success rate of finding water?First you should choose a high quality water detector,and then we have summrized the following points for your reference!And our water

Recently, the DFB (1400-4400 standard specifications)/300, DJB600/470, DJB800/420, DJB (1000, 1200)/300 metal roof beams independently developed and produced by China Coal Group, of which 4 types of h