GB/T 25217.9-2020

Methods for test, monitoring and prevention of rock burst—Part 9: Prevention method of water infusion on coal seam

NORMA vydaná dňa 19.11.2020

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The information about the standard:

Designation standards: GB/T 25217.9-2020
Publication date standards: 19.11.2020
Country: Chinese technical standard
Kategória: Technické normy GB