Shandong China Coal Group Drilling Machine Branch

Recently, four models of two-speed multi-purpose winches, JSDB-10, JSDB-13, JSDB-19, and JSDB-25 independently developed and produced by China Coal Group Intelligent Manufacturing Corporation, have su

After strict inspection and comprehensive evaluation by the EU certification body, the 42 specifications and models of excavators independently developed and produced by Shandong China Coal Constructi

From August 18th to 19th, the "Welcome to the 20th National Congress, Integrity Creates Glory" Shandong Enterprise Integrity Forum and Integrity Enterprise Award Ceremony is held in the hot spring tow

On August 16, Liu Jun, Director of the Service Industry Project Division of the Shandong Provincial Development and Reform Commission, a first-level researcher, Wang Haidong, a second-level researcher

Air Leg Rock Drill When connecting the air duct and the water pipe, the dirt in the pipe should be cleaned first to prevent the sundries from entering the machine.Worn machine parts.

Maintenance personnel must be familiar with the performance and working principle of the air leg rock drill