We are a manufacturer of Quartz glass fused silica plate/sheet . Size&design: Accept customize according to different diameter ,thickness,length or sending your drawing. Advantage of Quartz Glass Plate/Sheet/disc: 1)High purity :SiO2> 99.99%. 2)Operating Temperature: 1250℃; SoftenTemperature: 1730℃ . 3)Excellent visual and chemical performance:acid-resistance,alkali resistance,Good thermal stability 4)Health care and environmental protection. 5)No air bubble and no air line. 6)Excellent electrical insulator.