The use of silica silica is widely used. Crystal relatively rare in nature can be used to manufacture an important component of the electronics industry, optical instruments and crafts. Silica is an important raw material in the manufacture of optical fiber. Generally more pure quartz, quartz glass used to make. Quartz glass expansion coefficient is small nano-silica Which high volume, equivalent to 1/18 of nano-silica ordinary glass, can withstand temperatures of upheaval nano-silica company, good acid resistance (except HF outside), therefore, Quartz glass used to manufacture high-temperature chemical instruments. Quartz glass used as raw materials and supplies. Obtained from a lot of silica matting agent, according to the manufacturing process can be divided into two categories. One is the hydrothermal method of manufacture, production of silica forms relatively soft. Products made with silica gel texture is hard. The rocks on the sea Wu mostly cristobalite silica minerals, the volume fraction of up to 5%, almost no quartz mineral, only in fine crystalline mare basalts in only small amounts of quartz minerals, which have cristobalite The typical bimorph structure shows: in magma cooling process, cristobalite from a high temperature to low temperature conditions for the formation of both. Which nano-silica guaranteed | Weifang Fuyuan (certified) | nano-silica provided by Environmental Science and Technology Co., Ltd. Weifang Fuyuan. Weifang Fuyuan Environmental Protection Technology Co., Ltd. (www.wfdafuyuan.com) (www.wfdafuyuan.com) Shandong Weifang, the other leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Weifang Fuyuan leadership with the staff warmly welcome all inquiries negotiations to create Weifang Fuyuan a better future.