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Sapphire window
Sapphire windows have excellent surface hardness and transmittance ranges from ultraviolet to mid-infrared wavelengths. Sapphires can only be scratched by a few substances. The uncoated substrate is chemically inert and insoluble in water, common acids or bases at temperatures up to about 1000°C.
Sapphire high temperature resistance, good heat conduction, high hardness, infrared penetration, good chemical stability. Widely used in industry, national defense and scientific research in many fields (such as high temperature resistant infrared window, etc.).
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