GB/T 13813-2023

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

NORM herausgegeben am 23.5.2023

English, Chinesisch -
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The information about the standard:

Designation standards: GB/T 13813-2023
Publication date standards: 23.5.2023
Country: Chinese technical standard
Kategorie: Technische Normen GB