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MIL-PRF-13830B vs. ISO 10110-7 — How Defense Programs Specify "Scratch-Dig" Today?

The language of 'scratch-dig' re⋯
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What is the MIL-PRF-13830B standard and why is it crucial for high-quality optics?

MIL-PRF-13830B is the U.S. Department of⋯
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