surface, classified by  Iram pattern nº  11910  and ASTM E-162      

                           Treatments:   It doesn't require any treatment for their preservation.  

 
                       Solidity:  For their hardness it is absolutely resistant to the impact, compression, traction and shock of vibrations, with mechanical properties that overcome
                                                 
                                                      thoroughly to the strongest tree that provides the nature; with an aging resistance three times superior to the others.