Shandong China Coal Group Drilling Machine Branch

China Coal Group was rated as the single champion enterprise in the manufacturing industry of Jining City, and was commended at the conference.

The internal combustion gasoline rock drill uses this machine to operate conveniently and with high efficiency, reaching the good level of similar products, and can be completely interchanged with int

On the afternoon of May 14, Jiao Jian, Chairman of Jining Weishan Lake Chamber of Commerce and Chairman of Jining Hongyida Group Co., Ltd

Our society is developing, and machinery and equipment must keep up with the times, or they will have to be eliminated. What I want to tell you is the new era of the air leg rock drills of our Yimei C

On the morning of April 30th, a large-scale recruitment fair for veterans of Jining City’s 2021 "Military Post Day" was held in Jining Economic Development Zone.

If a machine is used for a long time, there will always be some minor problems, so we must have a certain understanding of it, and some minor problems will be solved when they happen. The following ed