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Stock Specification
MATERIAL | KOPP FILTER GLASS | SURFACE FLATNESS | ≤ 5 FRINGES | |
DIAMETER TOLERANCE | +0.00 / 0.2 | PARALELLISM | ≤ 3 ARC MINUTES | |
THICKNESS TOLERANCE | +/- 0.1 | EDGES | FINE GROUND | |
SURFACE QUALITY | 60/40 | COATINGS | ON REQUEST |