• DIN 21521-2

DIN 21521-2

Rock bolts for mining and tunnel support; general specifications for steel-bolts; tests, testing methods

Deutsches Institut Fur Normung E.V. (German National Standard), 02/01/1993

Publisher: DIN

File Format: PDF

$25.00$50.14


Published:01/02/1993

Pages:7

File Size:1 file , 510 KB

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