DIN 21920-5:1994-11

Mine plans - Petrography - Part 5: Hard coal mining.

STANDARD published on 1.11.1994

The information about the standard:

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
Category: Technical standards DIN