ELABORACIÓN DE LOS ESTUDIOS Y PROYECTO EJECUTIVO PARA LA CONSTRUCCIÓN DEL PUENTE VEHÍCULAR UBICADO EN EL KM 0 315 DEL CAMINO E.C. (METLATONOC-COCHOAPA EL GRANDE)-LLANO DE LA CHUPARROSA-SAN CRISTOBALITO-SAN MIGUEL AMOLTEPEC NUEVO EN EL CRUCE DE EL RÍO GRANDE

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