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The upper corner of the coal mining face often refers to those parts?
Release time:
2022-11-02
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The upper corner of the coal mining face often refers to those parts?
- Fall side of last shed in return air lane according to operation regulations1m.
- Use hydraulic support working face corner.
- The last column of the single hydraulic prop.
- The stack-type hydraulic support is the last sweeping gangue curtain.
- Cover the upper end of the last cover beam.
- The wooden pile is on the falling side.1m.
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Key words:
Often refers to, finally, bracket, hydraulic, one, cover, 1m, use, infringement, regulations
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