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DIN 21550:1988-05
Mine support; roof bars for single props; testing, requirements
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Summary
Grubenausbau; Stahlkappen für Einzelstempel; Prüfung, Anforderungen
Technical characteristics
| Publisher | Deutsche Institut für Normung e.V. (DIN) |
| Publication Date | 05/01/1988 |
| Page Count | 2 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
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01/05/1988
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