GB/T 13813-2008

Testing method and judging rule of safety to friction spark of metallic material for coal mine

NORMA vydána dne 26.5.2008

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The information about the standard:

Designation standards: GB/T 13813-2008
Note: NEPLATNÁ
Publication date standards: 26.5.2008
Country: Chinese technical standard
Kategorie: Technické normy GB