... specifications for diameter of 1.38 mm and 1.4 mm and 1.5 mm, 1.8, 1.9, 2 ... .0, 3, 4, 5, 6, 10 mm, 20, 25, ... in single end halogen lamp pressure bridge bar, fiber optic lighting, quartz fiber manufacturing, semiconductor silicon wafer processing, etc. This ... biggest through rate can amount to 80% above. 5. Electrical insulating performance is good. Quartz glass resistance ...