中英▼

  • The bevel milling cutter for cutting groove of oil casing - pipes was designed.

    设计了用于油气田管道坡口切割的角度铣刀。

    youdao

  • The bevel milling cutter for cutting groove of oil casing-pipes was designed.

    设计了用于油气田管道坡口切割的角度铣刀。

    youdao

  • The bevel milling cutter for cutting groove of oil casing-pipes was designed.

    设计了用于油气田管道坡口切割的角度铣刀。

    youdao

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