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www.ChineseStandard.net Database: 189760 (25 Oct 2025)

GB 12937-1991

Chinese Standard: 'GB 12937-1991'
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)See DetailStatusRelated Standard
GB 12937-1991English679 Add to Cart Days<=5 Terms relating to coal petrology GB 12937-1991 Obsolete GB 12937-1991

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