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GB 1806-1986

Chinese Standard: 'GB 1806-1986'
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)See DetailStatusRelated Standard
GB 1806-1986EnglishRFQ ASK Days<=3 The types and basic parameters for oil drilling rigs GB 1806-1986 Obsolete GB 1806-1986

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