quartz flange/quartz plate/quartz wafer Competitive Price No Bubble No Rift 1. Material properties High Durability High Corrosion Resistance Broad Transmission Spectrum Low Thermal Expansion Coefficient Softening point:1730°C=3146°F 2.Size Size: 1000mmX2000mm 3.Use Wildy used in Medical,Electronices instrument,Scientific research,Optical industry etc.