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Diameter 38mm and thickness 2mm B270 optical glass
Specifications:
- warmming: before pay pls contact with me
- Use: optical instruments
- thickness: 0.3-50mm
- tempered: depend your choice
- surface: 40/20
- surface: no bubbles and hairlines
- Size: 38mm
- shape: round
- polishing: both two sides
- Origin: CN(Origin)
- Model Number: B270
- Material: optical glass B270
- material: B270
- edge: protection chamfer
- color: clear
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