Properties: This product is the main component of SiO2, its formula SiO2nH2O1, is white, amorphous silica fine powder company, lightweight, with a diameter of 0.0003 cm below the original. Melting point 1750 ℃, high insulation resistance, insoluble in water and acid, soluble silica quality caustic soda and hydrofluoric Which is good, do not break down under high temperature, water absorption. Silica is used in colored rubber products to replace the carbon black reinforcement, to meet the needs of white or translucent product. Silica Which high credibility, Weifang Fuyuan (certified), 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.