This product is a reinforcing filler in rubber and plastics industry is widely used, it has the effect of reinforcing rubber products sales after carbon ultrafine silica, plus a vulcanized rubber silica major features are: high resistance up strength, elongation, good elasticity and heat resistance. Silica prepared by conventional methods is the use of sodium silicate, silicon tetrachloride, TEOS as the silicon source of ultra-fine silica companies, in addition to sodium silicate, other costs are high. The new method uses an inexpensive non-metallic minerals as a silicon source, greatly reducing the cost of production of silica. Ultrafine silica companies _ Weifang Fuyuan (certified) _ ultrafine silica provided by the Environmental Protection 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.