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        Model:85-10
        1. Material: Optical glass (high borosilicate, K9, BK7, BK270)
        2. Light transmission: 95% (97% after coating)
        3. Refractive index: 1.474
        4. Operating temperature: -50-500 degrees
        5. Size introduction: Diameter: 85mm, Height: 31.75mm, Steps: 3.5mm
        6. Light angle: 30°
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