Our company can supply: Quartz tube, quarts glass tube, quartz sheet, quartz lens, quartz test glass, quartz test tube, quartz beaker, quartz crucible and so on, The quartz specification: Specification: SiO2 > 99.96%, it has good physical and chemical character such as resistance to high temperature, resistance to acid and alkali, also well known as stability under high temperature, insulating and good spectral transmission charater(> 90%), we can produce low OH tube(< 5ppm or < 2ppm) under clients request.