GB/T 23561.12-2010

Methods for determining the physical and mechanical properties of coal and rock—Part 12:Methods for determining coal hardiness coefficient

NORMA vydaná dňa 26.9.2010

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The information about the standard:

Designation standards: GB/T 23561.12-2010
Note: NEPLATNÁ
Publication date standards: 26.9.2010
Country: Chinese technical standard
Kategória: Technické normy GB