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| International Standard Category: Plastics pipes and fittings for non fluid use |
GB/T 18477.3-2009 Unplasticized polyvinyl chloride (PVC-U) structure wall pipeline system for underground soil waste and drainage—Part 3:Bilayer and hollow-wall construction with axial hollow pipes
埋地排水用硬聚氯乙烯（PVC-U）结构壁管道系统 第3部分：双层轴向中空壁管材;
| Category No.: | 83.140.30 | Valid Status: | superseded |
| Issued Organization: | AQSIQ; SAC | Issued Date: | 2009-10-15 |
| Implemented Date: | 2010-3-1 | Abolished Date: | |
| Superseded Standard.: | GB/T 18477.3-2019 |
Superseded Date: | 2020-3-1 |
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