| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| GY/T 220.4-2007 | English | 609 |
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Days<=4
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Mobile multimedia broadcasting. Part 4: Emergency broadcasting
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GY/T 220.4-2007
| Valid |
GY/T 220.4-2007
|