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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 30534-2014 |
Codes and identification of secret level for scientific and technical reports 科技报告保密等级代码与标识 |
China National Standards Codes identification secret |
 English PDF |
| GB/T 7156-2003 |
Codes and identification of secret level for documents 文献保密等级代码与标识 |
China National Standards Codes identification secret |
English PDF |
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