| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| YD 331-1987 | English | 279 |
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Days<=3
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General technical requirement for supporting carrier communication equipment for standard coaxial integrated communication cables
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YD 331-1987
| Obsolete |
YD 331-1987
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