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DIN 21558:1990-05
Mine support; powered support; requirements, testing
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Summary
Grubenausbau; Schreitausbau; Anforderungen, Prüfung
Technical characteristics
| Publisher | Deutsche Institut für Normung e.V. (DIN) |
| Publication Date | 05/01/1990 |
| Page Count | 8 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
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Previous versions
01/05/1990
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