Size: Outer diameter: 2.5mm--240mm
Thickness of wall: 0.5mm--7mm

Technical data:
Silicon Dioxide >99.95%, Excellent visual and chemical performance, high thermo-stability, anticorrosive, Transmittance of visible light >90%. Deh-rodyolization available upon customer request, deshydroxy content less than 20ppm, 15ppm, 10ppm, 5ppm, or 2ppm.
Our products are used in areas of semiconductor, lighting and electric heating industries.
All our quartz tube with RoHS declare.