L’ALTRA PIETRA® presents at ARCHITECTS@WORK the new line of sintered stone paving in 2 cm thickness that reproduces the most desired natural stones. FORTEZZA is the line that represents the four selected colors. The reproduction of the most common Chinese granites with shades of gray, rich in lighter veins for creating contrasts. The sintered stone collection is therefore extended, reaching as many as 57 different nuances and 11 small and large formats.