Subcategorías
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ISO
International Organization for Standardization
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ASME
American Society of Mechanical Engineers
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AWS
American Welding Society
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NMX
Normas Mexicanas
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TEMA
Tubular Exchanger Manufacturers Association
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API
American Petroleum Institute
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SMACNA
Sheet Metal and Air Conditioning Contractors National Association
(Asociación Nacional de Contratistas de Chapa Metálica y Aire Acondicionado) -
ASNT
American Society for Nondestructive Testing