Voladura de Cantera

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Uploaded by on Oct 25, 2009

Voladura de retranqueo en la cantera de Cementos Rezola roca marga, atentos al bocazo y proyecciones producidas por un mal retacado. Los barrenos son de 20 m perforados a 89 mm. empleamos 1.500 Kg de dinamita y anfo, sistema de iniciación no eléctrico 25-42 ms.

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