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American Institute of Chemical Engineers (AIChE)

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American Institute of Aeronautics and Astronautics (AIAA)

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American Gear Manufacturers Association (AGMA)

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American Gas Association (AGA)

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American Concrete Institute (ACI)

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American Bureau of Shipping (ABS)

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American Bearing Manufacturers Association (ABMA)

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American Association of Textile Chemists and Colorists (AATCC)

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American Association of State Highway and Transportation Officials (AASHTO)

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Aluminum Association (AA)

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