Our quartz products contain 93% natural quartz ,the surface scratch hardness reach to 7,avoiding all kinds of scratchs .the high hardness allows us to cutting into the most precise sizes,flatness and many different shapes. Not damaged by the hot Not hurt by the acid or alkali Not get broken No poison and not radicalization Thickness:12mm,15mm,20mm,30mm Finishing:polished .honed,antique Monthly production:50000m2