... medical treatment, laser industries ect. Characteristics:1.high purity,2.low coefficient of thermal expansion,3.temperature resistance,4. ... and superiority 1, Shape:Round, square, rectangle;2, optical silica sheet: ZS-1 ZS-2 HS / JGS1 JGS2 JGS3;3, Customer’s ... of optical silica sheet can achieve the highest category ZS-1ZS-2HSSpectral characteristics180-2500nm200-2500nm260-3500nm The average ...