In the drilling of steel structure in various complex environments, magnetic drill is especially used in shipbuilding, paper making, bridge, mechanical equipment installation and steel structure engin
On the afternoon of August 25th, China Coal Group Held A Meeting On Production And Operation Analysis, comprehensively summed up the production and operation of the Group and various enterprises, anal
The reason for the formation of air leg rock drill water needle fault: The center hole of the shank is not correct, the gap between the shank and the shank is too large, the water needle is too long,
© Shandong China Coal Group. © 2016
Address:No. 11, North of Kaiyuan Road, High-tech Zone, Jining City, Shandong Province, China
Executive Editor: Linda Zhang