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Maintenance of air-leg rock drill jack hammer

30-11-2021
Connecting sleeve (coupling) and drill rod

26-11-2021
Importance of shank adapter

26-11-2021
Paying attention to these factors when buying high-quality button bits

08-11-2021
Correct use method and precautions of H22 tapered drill rod

08-11-2021
The influence of the drill bit and rod of the rock drill on the efficiency of rock drilling

04-11-2021
What are the types of rock drilling tools?

29-10-2021
Prepare the tapered drill rod before use

27-10-2021
What is the effect of choosing a reasonable drill bit and rod size

26-10-2021
What to do when the down-the-hole drilling rig encounters stuck drill and cannot remove chips

12-10-2021

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