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Publication of CA14260ApublicationCriticalpatent/CA14260A/fr
Procedimiento para la obtencion de placas de materiales petreos formadas por dos capas de material de distinta calidad estetica y placas obtenidas mediante el procedimiento.
Rubbed faced marble and stone concrete for building paving, monumental and decorative work, and for such other purposes for which marble and stone are used