| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| GA/T 600.4-2006 | English | 209 |
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Requirements for alarm transmission systems -- Part 4: Requirements for digital communicator systems using the public switched telephone network
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GA/T 600.4-2006
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GA/T 600.4-2006
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