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Priority to ES1971169896UpriorityCriticalpatent/ES169896Y/es
Publication of ES169896UpublicationCriticalpatent/ES169896U/es
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Publication of ES169896YpublicationCriticalpatent/ES169896Y/es
Tubería mixta para transporte de fluidos a presión, que esencialmente se caracteriza por constituirse a partir de un tubo interno de plástico, en funciones de elemento estanco, rodeado por otro de hormigón armado o pretensado, como elemento resistente, que a su vez se halla cubierto por otro tubo también de naturaleza plástica, que asume la impermeabilidad externa, todo ello de modo que el tubo interno sobresale una cierta medida por ambos extremos.
ES1971169896U1971-06-141971-06-14Tuberia mixta para transporte de fluidos a presion.
ExpiredES169896Y
(es)