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Disassembly and assembly of the air leg rock drill is a necessary skill for each drill operator.

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

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

XY-3 Borehole Water Well Drilling Rig Online Machine Installation Maintenance Instruction

Recently, Mongolian businessmen visited China Coal Group again to try out the new type of turnout for the Mongolian railway project. This type of turnout is a new type of turnout specially designed fo