Was founded in 1998, and our emphasis on optical fused quartz products and optical glass haveresulted in our excellent reputation in the field. Our manufacturing headquarters are located in BJ.where is more convenient to fulfil our customers' requests. As an international supplier of quartz, fusedsilica and optical glass products, we have been authenticated by GB/T19001-2008 QMS, we provideproducts for customers in America, Germany. France, Britain, Australia, Korea. Japan, and more. Ouiproducts are widely used in the Semiconductor, Telecommunications, Solar Energy, Electron, Optics.Optical Fiber, Chemical lndustry, Coating, Medical Treatment, Aerospace, Military Affairs and otherhigh-tech industries.