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Subject: Glass quality definition

Date: 10/14/02 at 1:35 PM
Posted by: Michel Barge
E-mail: michel.barge@optogone.com
Message Posted:

Who could tell how a glass quality is defined. In other words, for instance for BK7, how is a Grade A, or Grade B, or Grade A fine annealed defined or what it refers to? Thank you.

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