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www.ChineseStandard.net Database: 189759 (19 Oct 2025)

GB 55009-2021

Chinese Standard: 'GB 55009-2021'
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)See DetailStatusRelated Standard
GB 55009-2021English1379 Add to Cart Days<=8 Code for design of city gas engineering GB 55009-2021 Valid GB 55009-2021

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