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GB/T 12459-1990

Chinese Standard: 'GB/T 12459-1990'
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)See DetailStatusRelated Standard
GB/T 12459-1990EnglishRFQ ASK Days<=6 Steel butt-welding seamless pipe fittings GB/T 12459-1990 Obsolete GB/T 12459-1990

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