... ,good transmition,no airline,few bubbles.These types of quartz rod are widely used in the quartzware,laser making,fiber-optical ... (oC) 1683Annealing point(oC) 1215Defoamation Point (oC) 1120 Dimensional Tolerance OD & Tolerance(mm)Max. out of Round(mm)2.0±0.10 ... -stop quartz tube, red quartz tube, processed quartz tube, quartz rod, quartz plate, gray quartz tube, and so on. And we ...