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POLYKEM Oy AB
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POLYKEM Oy AB
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Publication of ES123532YpublicationCriticalpatent/ES123532Y/es
Tuberia compuesta caracterizada por comprender una capa exterior constituida por hormigón apta para dar al conjunto la solidez y resistencia mecánica necesarias y una capa interior constituida por material plástico apta para dar al conjunto la resistencia a la corrosión y que en su superficie que queda en contacto con el hormigón presenta rugosidades para facilitar la unión de las dos capas.