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www.ChineseStandard.net Database: 189760 (18 Oct 2025)

GB 439-1990

Chinese Standard: 'GB 439-1990'
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)See DetailStatusRelated Standard
GB 439-1990English179 Add to Cart Days<=2 Aviation jet engine lubricating oils GB 439-1990   GB 439-1990

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