
Mine plans; deep mining; underground workings; comments.
NORMA vydána dne 1.2.1992
Designation standards: DIN 21913-1/Bbl1:1992-02
Publication date standards: 1.2.1992
The number of pages: 78
Approximate weight : 234 g (0.52 lbs)
Country: German technical standard
Kategorie: Technické normy DIN
Bergmännisches Rißwerk; Tiefbau; Grubenbaue; Erläuternde Angaben.