Shandong China Coal Group Drilling Machine Branch

The usual components of drilling are: drill bit, drill collar, drill pipe, stabilizer, special joint and square drill pipe. The basic function of drill string is:

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

Recently, the equipment of well sinking winch produced and operated by shandong China coal mine group is in full compliance with the requirements of the EU "Technical coordination and Standardization

n order to continuously deepen the activities of “big learning, big research, and great improvement”, strongly promote the transformation of new and old kinetic energy into major projects, explore the

Screw air compressor adopts high capacity compression component, its rotor circular speed is low and the best oil injection is achieved, realizing high efficiency and high reliability.

On the afternoon of August 27th, a batch of Best Small Variable Speed Mag Drill will be loaded into the China Coal Group E-Commerce Industrial Park and will be sent to Lanzhou City, Gansu Provinc