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www.ChineseStandard.net Database: 189760 (1 Nov 2025)

GB/T 640-1984

Chinese Standard: 'GB/T 640-1984'
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)See DetailStatusRelated Standard
GB/T 640-1984EnglishRFQ ASK Days<=3 Chemical reagent--Sodium hydrogen carbonate GB/T 640-1984 Obsolete GB/T 640-1984

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