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AA GREY SHEETS-2018

Gray Sheet - International Designations and Chemical Composition Limits for Aluminum Hardeners

This publication includes designations, chemical composition limits and color codes for aluminum hardeners registered in accordance with the International Designation System for Aluminum Hardeners.

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Aluminum Association [AA]


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As the voice of the U.S. standards and conformity assessment system, the American National Standards Institute (ANSI) empowers its members and constituents to strengthen the U.S. marketplace position in the global economy while helping to assure the safety and health of consumers and the protection of the environment.

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