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442 220 METRADO DE CARGAS ESCALERA APOYADA EN VIGA ALTURA DE PASO 0.16 m LARGO DE CONTRAPASO 0.25 m ESPESOR DE CUELLO 0.
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ESCALERAS ESCALERA EN L PASO 13 12 11 10 CONTRA PASO 9 8 GARGANTA 7 6 5 4 3 2 1 ESCALERA ESPIRAL ESCALERA DOS TRAM
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