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Optical Glass 114mm 250mm Flat Plano Convex Lens CaF22021-10-21 22:40:53 |
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Spherical Or Aspherical Photochromic Optical Glass Lens ZnSe2022-02-25 17:41:23 |
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150mm K9 NBK7 Sapphire Cemented Achromatic Convex Lens2022-02-25 17:41:23 |
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Double Ball Glass Objective Cemented Telescope Lens2022-02-25 17:41:23 |
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Telescope Achromatic Clear Aspherical Optical Lens2022-02-25 17:41:23 |
