1 glass rod 2 purity 99.99% min 3,Resistance 1100 degree, 1000 long time work 4,Low OH 5, no ... bubble, no airline Glass rod1,glass rod: 2 purity 99. ... transmition,no airline,few bubbles.These types of quartz rod are widely used in the quartzware,laser making, ... quartz tube, red quartz tube, processed quartz tube, quartz rod, quartz plate, gray quartz tube, and so on. ...