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DIN EN ISO 21922/A1

Refrigerating systems and heat pumps - Valves - Requirements, testing and marking - AMENDMENT 1 (ISO 21922:2021/FDAM 1:2024); German version EN ISO 21922:2021/FprA1:2024

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EN ISO 21922/A1

Refrigerating systems and heat pumps - Valves - Requirements, testing and marking - Amendment 1 (ISO 21922:2021/Amd 1:2024)

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DIN EN ISO 21922/A1

EN ISO 21922/A1