Quartz is a physical and chemical properties are very stable mineral resources, quartz is quartz plate manufacturer of lumber produced its one short, because of its main ingredient plate quartz content of up to 93%, so called quartz stone. Quartz stone quartz content up to 94% of its quartz crystal is the nature of natural mineral hardness only to diamond, its high surface hardness of Ta Mok's hardness of 7.5, much larger than the kitchen knife used shovels and other weapon, will not be scraped hurt. Quartz stone is manufactured under vacuum and say what, dense non-porous composite material quartz surface of the kitchen has an excellent alkali corrosion resistance, daily use of liquid substances will not penetrate the interior, placed in a long the liquid surface only with water or other cleaning agents clean and bright with a rag to erase, can scrape the surface of the blade when necessary retentate.