99.9 % purity ISO 9001:2000 ISO 14001:2004 Material properties: High purity material High durability High corrosion resistance High-temperature resistance Broad transmission spectrum Low thermal expansion coefficient Working temperature: 1100ípC=2012ípF Softening point:1730ípC=3146ípF Annealing point:1180ípC=2156ípF Strain point:1075ípC=1967ípF Size : Size:according to the requirements Standard export packing
