... Appearances6. Strong Corrosion-resistant7. Good thermal stability8. Good transparency for light>90%9. Good electrical insulation10. Special dimension and ... good heating resistance,low OH), UV-stop quartz tube, red quartz tube, processed quartz tube, quartz rod, quartz plate, gray quartz tube, and so on. And we have ... , we can make as your requirement. waitting for your special specification to offer.