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  • Sapphire window

    Sapphire, also known as corundum, is a single crystal of aluminum oxide and is widely used in sci...

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  • Reflector

    1. The working principle of the reflector is based on the law of light reflection, that is, the i...

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  • Window piece

    1. Windows are usually made of materials with excellent optical properties, such as wear-resistan...

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