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Información general de la red ECOSur, sus productos y servicios.

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Humour, por Alfredo Martirena
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Consultants

Fernando Martirena
Cuban
Civil Engineer, PhD. Professor.
Spanish, English, German.
Research and investigation of materials, specifically alternative cement and cement products.

Videos

Molino mezclador de lodo para ladrillos
Earth mill for fired clay bricks - electric motor
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