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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 1048-2019 |
Pipework components—Definition and selection of nominal pressure 管道元件 公称压力的定义和选用 |
China National Standards Pipework components Definition |
 English PDF |
| GB/T 1047-2019 |
Pipework components—Definition and selection of nominal size 管道元件 公称尺寸的定义和选用 |
China National Standards Pipework components Definition |
English PDF |
| GB/T 1048-2005 |
Pipework components-Definition and selection of PN 管道元件--PN(公称压力)的定义和选用 |
China National Standards Pipework components Definition |
English PDF |
| GB/T 1047-2005 |
Pipework components-Definition and selection of DN (norminal size) 管道元件 DN(公称尺寸)的定义和选用 |
China National Standards Pipework components Definition |
English PDF |
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