MA

On the afternoon of April 18, Hebi Municipal Party Committee Secretary Fan Xiufang And Mayor Guo Hao and their entourages visited the China Coal Group accompanied by Jining City Deputy Mayor Tian Weid

On the morning of April 11, a batch of portable drilling rigs machines passed the inspection in Shandong China Coal Group Intelligent Equipment Manufacturing Workshop, formally loaded and shipped to a

Many factors will cause pneumatic rock drill failures because of poor lubrication, here are some common reasons and troubleshootings 1. Oil hole of oil injector was blocked, should be cleaned after t

. Malaysian merchants expressed their satisfaction and signed a water well drilling rig ordering contract on the spot. Both parties formally reached long-term strategic cooperation and signed a memora

Gas and water Malfunction failures of air leg rock drill are mainly due to: high water pressure, gas and water blocked, water valve spring failure, leakage, leakage, apron failure, parts of the valve

Malaysian Businessmen visited Shandong China Coal Group for long-term strategic cooperation on borehole drilling rig