Crylight au coating wholesale for commercial

Crylight au coating wholesale for commercial

material:
bk7
diameter tolerance:
±0.2mm
surface quality:
60/40
clear aperture:
>85%
bevel:
0.25mmx45°
parallelism:
flatness:
λ/10@632.8nm
front surface:
metallic coated
back surface:
fin eground and uncoated
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