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Válvula de cierre para conducciones de aguas y regadíos, caracterizada por estar compuesta por un anillo tubular con un estrechamiento en su parte inferior para su conexión solidaria y disposición fija en la boca de la tubería, teniendo en su parte interna un escalón perimétrico y sobre él tres aletas equidistantes que forman con el escalón tres porciones de un canal.
ES0075051U1959-07-201959-07-20Válvula de Cierre para conducciones de aguas y regadíos
ExpiredES75051Y
(es)