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DIN 21522:1972-07
Roof bolt plates for mining and tunnel support
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Summary
Ankerplatten für den Gruben- und Tunnelausbau
Technical characteristics
| Publisher | Deutsche Institut für Normung e.V. (DIN) |
| Publication Date | 07/01/1972 |
| Page Count | 1 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
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