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Recomendaciones Prácticas para preparar Hormigones · HF 3,5 3,5 35 HF 4,0 4,0 40 HF 4,5 4,5 45 HF 5,0 5,0 50 HF 5,5 5,5 55 HF 6,0 6,0 60 GRADO RESISTENCIA ESPECIFICA, ft. ... Fondos
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