明确的石英的管11

Clear Quartz Tube 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 We can also produce opaque (Milky white) quartz tubes, halogen heating lamps, carbon fibre lamps, ceramic heaters, quartz heaters, quartz sheets (plates), quartz crucibles, quartz flasks etc. You can check detail at our website . and add us at MSN on our website, then wecan talk on line freely.