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Procedimiento de fabricación de baldosas llamadas hidráulicas, consistente en formar la pieza dentro de un marco comenzando por introducir y extender una pasta fina o al menos un mortero cargado con la mayor cantidad de cemento recomendable,espolvorear dicho mortero con cemento puro mezclado con alguna arena fina y seca, situar de plano sobre al capa citada un elemento resistente a la deformación y verter y extender sobre este un hormigón ordinario par formar la capa respaldo de la pieza que será la de mayor espesor.
ES0236364A1957-07-041957-07-04Procedimiento de fabricaciën de baldosas llamadas hidraulicas.
ExpiredES236364A1
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