Company profileDonghai tengjun quartz products Co., Ltd. is located in "China quartz center" - Donghai County, Jiangsu Province. The company covers an area of 50 mu and has fixed assets of 10 million yuan. It is mainly engaged in high-quality quartz glass products and quartz glass pipes used in electric light source, sterilization, chemical pipeline, communication, heating equipment and other industries. The company's main products are: transparent fused silica glass tubes with an outer diameter of 2-500mm and various diameters; Diffusion furnace core tube, quartz boat, quartz support, cleaning tank, transparent quartz crucible and quartz flange used in semiconductor industry; Ozone free quartz tube; Ultraviolet filtering quartz tube; Fishing bulb shell; 13 kinds of ultra-high purity quartz sand with total amount of conventional metal impurities no more than 20ppm; Quartz rod with diameter of 1.5-80mm; Amorphous quartz particles for coating optical materials, etc.Among them, 320 diameter high-purity quartz tube for large-scale integrated circuit is a science and technology support (industrial) project in Jiangsu Province. The newly developed 520 diameter large diameter high-purity quartz pipe has passed the preliminary review of national new products; The company has applied for the special fund for the transformation of scientific and technological achievements in Jiangsu Province for the R & D and industrialization of large-diameter high-purity quartz glass tube, the key component of wafer oxidation (diffusion) furnace with a new product of more than 14 inches; In addition to selling well in more than 20 provinces, cities and autonomous regions at home and abroad, our products are also sold to countries and regions in the past, Germany, Britain, the United States, France, Russia, Taiwan and so on. In recent years, the company has paid great attention to scientific and technological innovation, and invested no less than 5 million yuan every year to develop new products, so as to enhance the market competitiven