CONSTRUCCION DE TERRACERIAS OBRAS DE DRENAJE PAVIMENTO DE CONCRETO ASFALTICO ESTRUCTURAS OBRAS COMPLEMENTARIAS Y SEÑALAMIENTO DE LOS PASOS SUPERIORES VEHICULARES UBICADOS EN EL KM 21 500 Y KM 26 000 CARRETERA LIBRAMIENTO NOROESTE DE MONTERREY EN EL ESTADO DE NUEVO LEON

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