NA 005
DIN Standards Committee Building and Civil Engineering
Standards
[CURRENT]
DIN 21919-3
DIN 21919-3
Mine plans - Stratigraphy - Part 3: Regional and local subdivisions; Lignite
Title (German)
Bergmännisches Risswerk - Stratigraphie - Teil 3: Regionale und lokale Gliederungen; Braunkohle