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Product Details
Specifications: :
1. Material: N-BK7
2. Surface Quality: 20/10-60/40
3. Surface Flatness: ≤λ/4 @633nm
4. Angles: 90°±5 arc sec
5. Clear Aperture: ≥ Central 80%
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Address: Building 5, 1258 erudite road, Jiading District, Shanghai
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