Clay Water Filters
The American Red Cross and the Sri Lanka Red Cross Society have introduced appropriate clay water filter (CWF) technology to Sri Lanka.
2008 , AmRC, SLRCS,
PDF ,AmRC & SLRCS , English
The American Red Cross and the Sri Lanka Red Cross Society have introduced appropriate clay water filter (CWF) technology to Sri Lanka.
2008 , AmRC, SLRCS,
PDF ,AmRC & SLRCS , English
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