A simple method for local manufacture of grindstones
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| Main Authors: | , |
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| Format: | Texto biblioteca |
| Language: | |
| Published: |
Geneva (Switzerland) ILO
1987
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| Subjects: | EQUIPMENT, APPROPRIATE TECHNOLOGY, MAINTENANCE, MATERIEL, EQUIPO, TECHNOLOGIE APPROPRIEE, ENTRETIEN, TECNOLOGIA APROPIADA, MANTENIMIENTO, |
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