China watch glass manufactures

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Borosilicate Glass Windows
- Designed for 0° Angle of Incidence
- Less Than 1.75% Reflectance Per Surface @ 400 – 700nm
- VIS 0° and VIS-NIR Coated Achromats Also Available
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Customizable Optical Sapphire watch crystal Lens
- Material: Sapphire, ZnSe, etc.
- Size: 1.0mm – 460mm
- Thickness: 0.1mm – 30mm
- Surface accuracy: lambda/20
- Surface quality: 10-5
- Tolerance: +/- 0.01mm
- Parallelism: 30″
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Borosilicate Glass Windows