High purity&heating-resistance OD range 1.2mm-360mm, Silicon Dioxide>99.95% Transmittance of visible light>90% Specification 1. OD:1.2mm ... -360mm2. thickness of wall:0.5mm-12mm3. type:transparent,translucent,milky-white,red, ... %transmittance of visible light>90%,OH content less than 50ppm,20ppm,15ppm,10ppm,5ppm One end closed Fire Polished Quartz Sleeve with CE ...