Difference between revisions of "File:Stone hammer well drilling.PNG"
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(Stone hammer well drilling. Drilling a 20 m well in Chinandega, Nicaragua, with the Rota-sludge method. Insert left: Rota-sludge drilling head. Insert right: Stones extracted with Rota-sludge.) |
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Latest revision as of 07:52, 5 October 2013
Stone hammer well drilling. Drilling a 20 m well in Chinandega, Nicaragua, with the Rota-sludge method. Insert left: Rota-sludge drilling head. Insert right: Stones extracted with Rota-sludge.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 07:52, 5 October 2013 |  | 325 × 311 (222 KB) | Winona (talk | contribs) | |
| 02:08, 3 April 2013 |  | 340 × 325 (222 KB) | Winona (talk | contribs) |
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