Directia Generala Pentru Dezvoltarea Constructiilor De Locuinte Social-Culturale Si Administratie Locativa
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Procédé pour la fabrication d'un matériau composite à base d'un liant hydraulique renforcé par des fibres, caractéristiques du composé fabriqué et utilisation de celui-ci.
Metodo mejorado para la fabricacion de una lamina ondulada sin amianto a base de una mezcla de 40% a 60% de cemento,30 a 40% de silice y de 5 a 15% de fibras celulosicas