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YD/T 690-1994

Chinese Standard: 'YD/T 690-1994'
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)See DetailStatusRelated Standard
YD/T 690-1994English279 Add to Cart Days<=3 Quality grading criteria of rural and urban local subscriber loop carrier equipment YD/T 690-1994 Obsolete YD/T 690-1994

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