China Public telecom netwo GB Standards Search Result |
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GB/T 13127-1991 Specification for interworking of chinese ideogram teletex on public telecommunication networks--The terminal equipment - 英文版 |
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GB/T 11820-1989 The requirements for urban optical fiber cable systems joined to national public telecommunication network - 英文版 |
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GB/T 6282-1986 Interface parameters of the 25 to 1000MHz land mobile telecommunication network connecting to public telecommunication network through subscriber lines - 英文版 |
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