quartz wafers/quartz plate/quartz glass sheet: 1. Material properties Both side polished Broad Transmission Spectrum Low Thermal Expansion Coefficient Can work long time with 1100°C Softening point:1730°C=3146°F Annealing point:1180°C=2156°F Strain point:1075°C=1967°F 2. Size and shape Thickness: 0.5-50mm MAX Size:1000mm×2000mm(square) Round, Square, Rectangular and Various shapes available 3. Use Wildy used in Medical,Electronices instrument,Scientific research,Optical industry etc.