Standard By:Deutsches Institut Fur Normung E.V. (German National Standard) , 11/01/1994
Published:11/01/1994
Pages:15
File Size:1 file
Language:German
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DIN 21920-5
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Mine plans – Petrography – Part 5: Hard coal mining
Deutsches Institut Fur Normung E.V. (German National Standard) , 11/01/1994
Pages: 15
