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Sapphire, Quartz, and Ultra Low Expansion Grade Glasses

This photo illustrates parts fabricated from sapphire and quartz, as well as a variety of glasses including zero thermal expansion grades from various suppliers. Very tight as-ground tolerances are routine, and most features can also be mechanically polished to optical quality per MIL standards.

Sapphire, Quartz, and Ultra Low Expansion Grade Glasses | Insaco, Inc.

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