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DIN 21557:1987-02
Mine support; yield valves for powered support; identification code
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Summary
The standard contains requirements for identification marking.
Technical characteristics
| Publisher | Deutsche Institut für Normung e.V. (DIN) |
| Publication Date | 02/01/1987 |
| Page Count | 2 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
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01/02/1987
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