• The system design is reasonable, safe and reliable, fully meet the normal tripping and emergency brake of drilling rig, the light drilling and workover machines, has a good application prospect.

    系统设计合理安全可靠完全满足钻机起下钻紧急刹车轻型钻机修井机上具有好的应用前景。

    youdao

  • The system design is reasonable, safe and reliable, fully meet the normal tripping and emergency brake of drilling rig, the light drilling and workover machines, has a good application prospect.

    系统设计合理安全可靠完全满足钻机起下钻紧急刹车轻型钻机修井机上具有好的应用前景。

    youdao

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