... : Wonderful texture, Higher gloss, Higher strength & hardness, Better chemical stability, Lower water absorption, Resistance to pollution, Maintainance free, Frost resistance,good ... layer 0%, vitrified layer less than 0.1%. (7) Glossness: more than 110. (8) Proportion: 2.4-2.5. (9) ... Hardness: 6.0 Mohs.(10) Compressive strength: more than 50Mpa lower water absorption 800X800 porcelain tiles