HFMG-200 Multi-function Full Hydraulic Eengineering ...
2021-5-18 · 3. It is suitable for drilling with hydraulic hammer at the bottom of hole in broken layer, sand egg layer and other formation with large water content, and mud discharge. 4. Drill pipe drilling and casing combined drilling. 5. can achieve single pipe, double pipe, three pipe rotary jet, pendulum jet, fixed jet technology (customer optional).
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