How to identify quartz stone quartz stone is good or bad one, relatively Beverly quartz and quartz 2 other domestic appearance: A, Beverly quartz: clear, bright color, no film B, other domestic quartz Stone: cloudy, hazy color, we need to film. 3, raw materials: A, Beverly Quartz: 94% of the material is quartz (silicon dioxide content of more than 99.9%, the melting point of up to 1300 degrees Celsius) quartz stone countertops, 6% of resin and traces of paint. Section sharp, reflective of good B, other domestic quartz: quartz content is low, up to 80%, high resin content (over 20%), use of quartz, which added a lot of calcium quartz, and therefore does not scratch. Characteristics of quartz and quartz stone has the characteristic Cause 3, with no old quartz Dan Guangze bright surface is the result of more than 30 channel complex polishing treatment process quartz plate, will not be scratching knife blade is not as liquid substance penetration, no yellowing and discoloration and other problems, daily cleaning simply rinse with water, simple. Kai Sa quartz, Kai Sa Building Materials (certified), quartz stone supplied by Kai Sa Building Materials Co., Ltd., Dongguan City. Dongguan Kai Sa Building Materials Co. (www.kaisa-stone.com) is Dongguan, sandstone leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Kai Sa leader in building materials with the staff warmly welcome all inquiries negotiations to create Kai Sa Building Materials better future.