50mm,60mm,75mm,90mm
 

    Quartz glass is a material contained by silica products, such as crystal, quartz stone, SIO4 as the raw material melting in the high temperature. The silica content is much higher than ordinary glass, usually, the content of SI02 is 99.999%.
    Quartz glass is a good acid-proof material and has excellent electrical properties and excellent optical properties, not just have visible light transmission but also can through the ultraviolet and infrared.