Shandong China Coal Group Drilling Machine Branch

Water well drilling rigs are suitable for water well drilling, geological survey, geological core drilling, small grouting holes, blast holes in railways, water conservancy, bridges, dam foundations a

Gasoline rock drills should be regularly maintained during use. The quality of gasoline rock drill maintenance determines the performance of the rock drill. The performance of the rock drill directly

According to the "Notice on Carrying Out Supplemental and Partial Investment of Agricultural Machinery Purchase Subsidies, New Product, and Plant Protection Unmanned Aircraft", after strict review by

On the morning of May 20, Yingjisha County Party Committee Vice Secretary, Jining Aid Xinjiang Command Comrade Sun Xizhong and his entourage visited China Coal Group, accompanied by Jining High-tech Z

In order to better promote the interactive docking between enterprises and job seekers during the outbreak, on May 15th, a webcast job fair held by Bureau Of Human Resources And Social Security in Jin

Air leg rock drills are used in many fields, but improper operation may not only reduce the operating efficiency, but also may be dangerous. Therefore, the correct operating procedures for air leg roc