Mine plans - Strata and ground movements.
NORMA vydaná dňa 1.2.1999
Designation standards: DIN 21917:1999-02
Note: NEPLATNÁ
Publication date standards: 1.2.1999
The number of pages: 15
Approximate weight : 45 g (0.10 lbs)
Country: German technical standard
Kategória: Technické normy DIN
Bergmännisches Rißwerk - Gebirgs- und Bodenbewegungen.