Natura-Vein Tech is the latest step forward in porcelain stoneware production technology, a new frontier that edges the industrial product even closer to the unique, natural look of marble. Exactly like natural marble, the veining pattern is completely random. The technology can be applied to both the 12 and the 20 mm thicknesses. During the production process, this technology makes it possible to obtain a controlled sedimentation of the minerals, passing through the full thickness of the slab for perfect consistency between the surface and the body.