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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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 21:13, 9 May 2012 | | 340×325 (266 KB) | Winona (Talk | contribs) | |
| 17:34, 30 July 2007 |  | 665×835 (1,021 KB) | Bjelkeman (Talk | contribs) | (The Stone-hammer in India, drilling a 20 m deep well in a stony layer. Insert: Drill-head stone-hammer.) | |
| 17:26, 30 July 2007 |  | 665×835 (1.1 MB) | Bjelkeman (Talk | contribs) | (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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