Geng Xueliang, leader of the extraction team of Changcun Coal Mine of 1xBet free money Chemical Industry, and his team members are conducting cross-layer drilling operations underground
The mine’s key technology research project on intelligent early warning and precise prevention and control of strong mine pressure on the working face has reached the international leading level
1xBet free money Chemical Changcun Coal Mine will complete 28 technology projects in 2023
Editor: Hao Jiali