Construcciýn de sistema de alcantarillado sanitario consistente en el suministro e instalaciýn de 2,809.08 m. de tuberýa de 8" (200 mm ) de diýmetro, de PVC serie-20 con junta hermýtica, 32 pozos de visita tipo comýn en la localidad de Guachochi municipio del mismo nombre, en el Estado de Chihuahua.

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