Changes

Sludging - Asian sludge

10 bytes removed, 04:31, 9 November 2012
Reference manuals, videos, and links
Mainly used in India, Bangladesh, Nepal and Chad.
==Reference manualsManuals, videos, and links==
* [http://www.practicafoundation.nl/wp-content/uploads/PDF/Practica%20drilling%20Rs%20versie%201th%20september%2005.pdf Rota-sludge and Stone Hammer drilling, part one: Drilling Manual] by Practica Foundation. [http://www.practicafoundation.nl/wp-content/uploads/PDF/practica-production-rs-versie-1th-september-051.pdf Rota-sludge and Stone Hammer drilling, part two: Production Manual] by Practica Foundation.
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