is a characteristic of ceramic tiles reproducing marble. In veined porcelain stoneware the veining is also reproduced in the tile body.

they represent the technological solution best suited to solving the problems relating to the thermal insulation of buildings. The system consists of three elements: a thermal insulation panel, a support structure and an external covering for which rectified porcelain stoneware products prove to be the most suitable. The fixing of slabs can be carried out using visible or hidden hooks.

a partial and progressive fusion of ceramic mix, clay, feldspars, glaze, etc. caused by the temperature increase during firing. During this process, the vitreous amount increases and the apparent porosity of the material is reduced. A ceramic body is completely vitrified if the glass fills all the pores and cements them.