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* Diameter: 15mm~150mm
* surface quality: 60/40 80/50 or according to your requirement
* Tolerance: +- 0.1~+-0.2 mm
* Material type: BK7 B270 borosilicate glass and so on
| Item | For choices | Remark |
| Glass material | B270 BK7 QUARTZ | other material also available |
| Refractive index | 1.474 / 1.523 / 1.60 / 1.67 | not including all |
| Glass color | white and green | not including speical color |
| Diameter range | 10mm~250mm | |
| Tolerance range | ± 0.05mm ~± 0.15mm | depend on the lens size |
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