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| International Standard Category: External water conveyance systems |
SL/T 231-1998 Standard for antiseepage engineering lined with polyethylene (PE) geomembrane
聚乙烯（PE）土工膜防渗工程技术规范 SL/T 231-98;
| Category No.: | 93.025 | Valid Status: | valid |
| Issued Organization: | NDRC | Issued Date: | 1997-3-29 |
| Implemented Date: | 1999-3-1 | Abolished Date: | |
| Superseded Standard.: | Superseded Date: |
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