The manufacture of unglazed fine stoneware is characterised by a complex mineralogical transformation process for colour and structure. The result is a homogenous product that benefits from all of the advantages of densely vitrified fine stoneware. Unbeatable properties such as - resistance to heavy loads, - protection against mechanical wearing, - resistance to most acids, alkali and frost Represent just some of the superb quality characteristics of ZAHNA floor tiles. Our quality products also stand out for their ability to meet the strict requirements of laying by means of the vibratory method, excellent laying properties and easy-clean surfaces.