Central cable drill pipe-beneficial mining technology.

Release time:

2020-11-21

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Key words:

Central cable drill pipe-beneficial mining technology.

Mechanical reaming hole drilling rig-beneficial mining technology.

φ153-B40.5-200 Diamond Drill Bit-Yiguang Technology

Mechanical reaming hole drilling rig-beneficial mining technology.

φ153-B40.5-200 Diamond Drill Bit-Yiguang Technology

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