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GB 3378-1982

Chinese Standard: 'GB 3378-1982'
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)See DetailStatusRelated Standard
GB 3378-1982English169 Add to Cart Days<=2 [GB/T 3378-1982] Subscriber line signaling system for telephone automatic switching network GB 3378-1982 Valid GB 3378-1982

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