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Working SiteThe crawler down-the-hole drilling rig machine is mainly used for all kinds of mines, traffic, water conservancy and quarry projects, drilling blasting holes and tunnel pipe support hole. The essence of DTH drilling is to make the impactor submerge into the hole in the process of drilling, so as to reduce the energy loss caused by the transmission of impact energy by the drill rod, thereby reducing the influence of hole depth on drilling efficiency. ![]() ![]() ![]() ![]() ![]() |
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