Potters for Peace Ceramic water filter
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slide show powerpoint Nov 2011 ; Duration: 10 min.
Ed. Potters for Peace - Boulder
Downloadable from the publisher
Abstract:
Potters for Peace colloidal silver ceramic water filter
Keywords: |
low cost technology (CI) (DT) (ET) , potabilisation (CI) (DT) (ET) |
Publisher/Broadcaster: |
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Potters for Peace - Boulder - Usa |
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