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Mine plans - Petrography - Part 5: Hard coal mining.
STANDARD published on 1.11.1994
Designation standards: DIN 21920-5:1994-11
Publication date standards: 1.11.1994
SKU: NS-190917
The number of pages: 15
Approximate weight : 45 g (0.10 lbs)
Country: German technical standard
Category: Technical standards DIN
Bergmännisches Rißwerk - Petrographie - Teil 5: Steinkohlenbergbau.
WITHDRAWN
1.3.2002
1.8.2008
1.3.2002
WITHDRAWN
1.8.2003
1.8.2008
1.6.2013
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