
Mine plans - Petrography - Part 5: Hard coal mining.
NORMA vydána dne 1.11.1994
Designation standards: DIN 21920-5:1994-11
Publication date standards: 1.11.1994
The number of pages: 15
Approximate weight : 45 g (0.10 lbs)
Country: German technical standard
Kategorie: Technické normy DIN
Bergmännisches Rißwerk - Petrographie - Teil 5: Steinkohlenbergbau.