... us the draft 3. Good price. Sealing Quartz TubeOur company also do quartz glass tubes deep-processing. There is cutting, ... from 3-300mm clear quartz tube, UV-stop quartz tube, red quartz tube, processed quartz tube, quartz rod, quartz plate, gray quartz tube, and so on ... , electronics and others. We have exported to Germany, Holland, Japan, and Korea, US and other countries and regions. They all ...