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| Sealed Insulating Glass Mfg. Association |
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Sigma is a national association of sealed insulating glass manufacturers. It provides the leadership required to assure the continued growth of the IG industry. Sigma's functions include the following: direct applied research, professional educational forums, and sets the level of product testing required for Sigma membership.
Sealed Insulating Glass Mfg. Association
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File No: 9544 Friday, 30-Jul-2010 07:41:15 EDT |
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