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20x20x20mm optical glass triangular prism 45 degree right angle prism small prism visual measurement optical prism
Specifications:
- Angle Tolerance: 6
- Dimension Tolerance: 0.05
- Material: H-K9L
- Origin: Mainland China
- Size: 20x20x20
- Surface: 60/40
- Free shipping
We offer free shipping for all products
- 100 days returns
If you aren't satisfied, you can return within 100 days
- Low prices
Up to 40% off, and new deals every week
- 5 million products
With over 5 million products, you are guaranteed to find something you like