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small portable borehole drilling machines DTH water well drilling rig price
YQ full-air DTH drilling rig is widely used in small and medium-sized mines and transportation, national defense, water conservancy, stonework and other projects, especially for the rugged terrain of other rigs that cannot work normally. The machine has the advantages of simple structure, convenient operation, low price and energy saving. At the same time, it has the function of drilling vertical and horizontal blasting holes, especially the machine has low center of gravity and good detachability, and is very convenient for relocation and transportation.