On the afternoon of February 25th, Gao Dongxu and Gao Cong, Deputy Secretaries of the Jining Municipal Committee of the Communist Youth League, Du Mingwu, Deputy General Manager of Shandong Land Group
Gasoline rock drill use this machine to operate conveniently and efficiently, reach the good level of similar products
China Coal News Women's Volunteer Service
On the morning of February 22, Gao Dongxu, deputy secretary of the Jining Municipal Committee of the Communist Youth League, visited China Coal Group
The 7655 air leg rock drill is a highly efficient rock drill. It is widely used in rock tunnel excavation and various rock drilling operations to drill blast holes.
In order to commend the advanced and establish a model, on the afternoon of February 4th, the 2020 annual summary and commendation meeting of China Coal Group was held in the group. China Coal Group C
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