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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 25140-2010 |
Seal-less rotodynamic pumps - ClassⅡ - Specification 无轴封回转动力泵技术条件（Ⅱ类） |
China National Standards ClassⅡ |
 English PDF |
| GB/T 5656-2008 |
Technical specification for centrifugal pumps - ClassⅡ 离心泵 技术条件(Ⅱ类) |
China National Standards ClassⅡ |
English PDF |
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