Drilling Equipment

Afternoon, in the intelligent equipment production and manufacturing workshop of China Coal Group, workers were loading and unloading the monolithic mining rock drilling equipment , and then these equ

Afternoon, in the intelligent equipment production and manufacturing workshop of China Coal Group, workers were loading and unloading the monolithic mining rock drilling equipment , and then these equ

At the end of 2017, the Xicheng high-speed railway passing through the Qinling and Daba mountainous areas was completed, marking that the high-speed railway in the western region of China has been con