Report - la nostra pietra · SiO2 72.5 - 75.8 TiO2 0.1 - 0.3 Al2O3 12.7 - 14.1 Fe2O3 0.4 - 1.1 FeO 0.7 - 1.8 ... Modulo elastico tangente 60360 ... height of 1400 mts.

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