Two options are given, heat-only grade and optical UV-grade;
If the optical transmission is not important for your applications, please select the heat-only grade quartz plates. If your applications require higher precisions in optical transmission, surface flatness, and surface roughness, please select the UV-grade quartz plates;
Perfect for high-temp applications; chemical-resistant;
Temperature tolerance can be as high as 1450 °C;
UV-Grade plates are suitable for optical applications over the range 190-2500 nm;
4 pieced are included.