
Underground mine workings
NORM herausgegeben am 1.1.2013
Designation standards: SP 91.13330.2012
Publication date standards: 1.1.2013
The number of pages: 62
Approximate weight : 186 g (0.41 lbs)
Country: Russian technical standard
Kategorie: SP
Implemented changes and corrections:
amd. - 2014
Rev. 1 - 2021