... of artificial stone which mainly consist of quartz crystals, and mixed with high-strength resins and other additives.It is ... after contacting with acid,alkali.Just rinse it with water every time after using. The materials are mixed in ... finishpolished, honed, bush-hammered, sand blasted, water-jet, antiqueAdvantageNon-porous and high resistance to stains; Scratch resistanceSafety and maintenance ...