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Half pentagonal prism

Dimension tolerance±0.03~0.15
Angle tolerance3'~5'
Parallelism5'~10'
Roughness60/40~40/20
Aperture0.5~2
Irregularity0.2~0.5
MaterialsH-K9, H-BAK7, the kinds of high quality optical glass
L10mm~60mm
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