Regarding to the problem, XC-82 hydraulic rotary impact drilling tools and matching bits are developed by Daqing Geophysical Exploration Corporation.
针对这一问题，大庆物探公司研制出XC- 82型液力旋冲钻具及配套钻头。
Italian drilling equipment and tools are making an increasing impact outside their country of origin, particularly in the construction, civil engineering and water well drilling sectors.
意大利的钻进设备和工具在其本土以外的许多国家的影响越来越大，尤其是在建筑和土木工程以及水井施工领域。
Wheel is a new diamond drill bit for oil drilling tools, drill bit bearing life with their life impact of crucial importance.
轮式金刚石钻头是一种新型的石油钻探工具，钻头轴承的寿命对其使用寿命有着致关重要的影响。
Wheel is a new diamond drill bit for oil drilling tools, drill bit bearing life with their life impact of crucial importance.
轮式金刚石钻头是一种新型的石油钻探工具，钻头轴承的寿命对其使用寿命有着致关重要的影响。
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