600*1200 Six Difference Face Natural Stone Ceramic Tiles Deroration 1. Synthesized with high purity quartz stone(93%), high polymer material (7%) and a small amount of inorganic pigment.2. Pressed under vacuum condition and high pressure.3. Processes fully automatic 36-unit to fix thickness,grind and polish.4. 93% quartz stone make powerstone quartz stone be high hardness (7 grade), excellent smooth and bright surface.5. Non-porous surface make sure its incomparable