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

GB 641-1978

Chinese Standard: 'GB 641-1978'
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)See DetailStatusRelated Standard
GB 641-1978English199 Add to Cart Days<=2 Chemical reagents--Potassium persulfate GB 641-1978 Obsolete GB 641-1978

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