... -discolouring photovoltaic use Clear quartz glass rod at competitive price1, quartz glass rod2,tight siz tolearance3,Resistance ... g/cc)Density20 °C kg.m-32.2Degree of Hardness Moh’s Scale5.5-5.6Softening point ... quartz tube, processed quartz tube, quartz rod, quartz plate, gray quartz tube, and so on. And we ... have further capacity of trim cutting, fire-polishing, pinching, and bending, ...