The self-feeding bit consists of the rotary nozzle, the cutting conformity device and the power supply device etc.

自进式钻头由旋转喷嘴、钻屑整合装置、推力提供装置等组成。

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The self-feeding bit consists of the rotary nozzle, the cutting conformity device and the power supply device etc.

自进式钻头由旋转喷嘴、钻屑整合装置、推力提供装置等组成。

youdao