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Supplier of optical materials and precision optical components made of fused silica, fused and crystalline quartz, sapphire, calcium fluoride, lithium fluoride, barium fluoride, magnesium fluoride,sodium chloride, potassium chloride, potassium bromide, lithium niobate,zinc selenide, calcite,germanium, silicon, silicon wafers, gallium arsenide,KRS-5, nonlinear crystals, scintillation crystals, astrosital