Humour, por Alfredo Martirena

The water: A big problem

Alfredo Martirena

Alternative mud bricks

 
© y ® Alfredo Martirena

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 © y ® Alfredo Martirena

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Consultants

Peter Arndt
German
Social worker and Mechanical technician
German, English, Spanish
Project administration and management, social organization, mechanical innovation

Videos

Teja de MicroConcreto
MicroConcrete Roofing Tile machine
The tevi model TM5 may works with a 12V inverter or with solar panels or a car batery, by itself. A well trained, 2-people team, can produce up to 350 tiles per day
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