| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| YD/T 2023-2009 | English | 839 |
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The general technique requirements of service quality monitor system in Multi-carrier internet
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YD/T 2023-2009
| Obsolete |
YD/T 2023-2009
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