
Rules for the protection of structures and natural objects from the harmful effects of underground mining in coal deposits
NORM herausgegeben am 1.10.1998
Designation standards: PB 07-269-98
Publication date standards: 1.10.1998
The number of pages: 199
Approximate weight : 628 g (1.38 lbs)
Country: Russian technical standard
Kategorie: PB