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In the morning of December 7, Jining Old Science Association Secretary-General Fu, Yutai County Old Technology Workers Association President Yu, Yutai County Science Association Chairman Yang, Yutai C

In order to give full play to the functions of the association and better carry out the next step, on November 29, the chairman's office meeting of the Shandong Provincial Cross-border Electronic Comm

At the invitation of Zaozhuang Vocational College of Technology, on November 27, China Coal Group held a special job fair at Zaozhuang Vocational College of Technology. Yu Cui, Deputy General Manager

In order to adapt to the new situation of the group's operation and development, comprehensively improve the comprehensive quality of management personnel, further standardize the signing and performa

Rock drills, also known as wind drills, are metalworking tools that use compressed air for power drilling. Different sizes of pneumatic drills are available for various sizes of drill bits.

The air leg rock drill is a highly efficient rock drilling machine. Air leg rock drill has the advantages of small size, light weight and low gas consumption. The air leg rock drill is widely used in