... stripes, uniformity, there can birefringence comparable with the general optical glass;200 nm to 2500 nm spectral range of a ... 8.TemperedProduct elucidation: Used in military, lasers, metallurgy, optical instruments, stage lighting industry, high-temperature window.The product' ... goods quick, the price is low.Details:High-temperature optical quartz glass mainly used in the military, metallurgic and ...