Rosa Zarci

Absortion:                                    0.15%
Porosité:                                                        0.40%
Resistance mecanique á la compression:                 1266kg/cm2
Resistance mecanique á la flexion:                        118.5kg/cm2
Resistance a l' usage:                                     8.43mm
Resistance a l' impacte:                                       23.3 cms
Test Froid.                               0.10km/cm2