• 管柱下井筒支承套管柱井口装置配件

    The subassembly of a wellhead that supports the casing string when it is run into the wellbore.

    youdao

  • 管柱下井筒支承套管柱井口装置配件

    The subassembly of a wellhead that supports the casing string when it is run into the wellbore.

    youdao

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