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FIBROCEMENTOS CASTILLA S A
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FIBROCEMENTOS CASTILLA S A
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Application filed by FIBROCEMENTOS CASTILLA S AfiledCriticalFIBROCEMENTOS CASTILLA S A
Priority to ES0237279ApriorityCriticalpatent/ES237279A1/es
Publication of ES237279A1publicationCriticalpatent/ES237279A1/es
Un perfeccionamiento en la fabricación de tubos de fibrocemento caracterizado porque para el proceso de formación de los tubos por el sistema de nucleo permeable y cilíndro calandrador, se emplea un cilíndro calandrador provisto de una ranura de forma especial que produce sobre el núcleo cilíndrico opuesto un tubo con un resalto anular, y porque dicho cilíndro calandrador tiene resalto anular que produce sobre el núcleo opuesto en el tubo de fibrocemento una ranura anular.
ES0237279A1957-08-261957-08-26Un perfeccionamiento en la fabricaciën de tubos de fibrocemento
ExpiredES237279A1
(es)