... 99%Characteristics and superiority 1, Shape:Round, square, rectangle;2, optical silica sheet: ZS-1 ZS-2 HS / JGS1 JGS2 JGS3 ... quality :40/20 60/40 80/507, Transmittance >85%8, Coating: high anti-UV film, antireflective film, gold, aluminum, silver series quartz ... glass and quartz UV filters, curved reflector, filter glass and so on.A variety of optical silica sheet can ...