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  2. Standards for Extra thick coal seam

Extra thick coal seam

Extra thick coal seam, Total:2 items.

The international standard classification for "Extra thick coal seam" includes: .

The Chinese standard classification for "Extra thick coal seam" includes: .

Group Standards of the People's Republic of China

  • T/QGCML 3088-2024 Technical regulations for adjusting the state of periodic pressure supports in the fully mechanized caving working face of extra-thick coal seams under the overlying goaf
  • T/QGCML 3075-2024 Technical regulations for precise detection of underground drilling technology in extra-thick coal seams

Extra thick coal seam

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