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Mine plans - Deep mining - Part 4: Hazardous zones, zones of protective measures.
STANDARD published on 1.2.2009
Designation standards: DIN 21913-4:2009-02
Publication date standards: 1.2.2009
SKU: NS-190880
The number of pages: 16
Approximate weight : 48 g (0.11 lbs)
Country: German technical standard
Category: Technical standards DIN
Bergmännisches Risswerk - Tiefbau - Teil 4: Gefahren- und Schutzbereiche.
1.1.2011
WITHDRAWN
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1.10.2014
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Latest update: 2026-10-16 (Number of items: 2 307 409)
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