| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| GB/T 42756.4-2023 | English | 1104 |
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Days<=7
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Cards and security devices for personal identification - Contactless proximity objects - Part 4: Transmission protocol
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GB/T 42756.4-2023
| Valid |
GB/T 42756.4-2023
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