| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| GB/T 21741-2008 | English | 439 |
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Days<=3
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General specifications of security and protection system for residential area
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GB/T 21741-2008
| Obsolete |
GB/T 21741-2008
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