DIN 21521-1

Rock bolts for mining and tunnelling; terms

Deutsches Institut Fur Normung E.V. (German National Standard) , 07/01/1990

Publisher: DIN

File Format: PDF

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Standard By:Deutsches Institut Fur Normung E.V. (German National Standard) , 07/01/1990

Published:07/01/1990

Pages:6

File Size:1 file

Language:German

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