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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 35451.2-2018 |
Polypropylene(PP) structure-wall piping systems for underground drainage and sewerage—Part 2: Polypropylene spirally enwound structure-wall pipes 埋地排水排污用聚丙烯(PP)结构壁管道系统-第2部分：聚丙烯缠绕结构壁管材 |
China National Standards spirally |
 English PDF |
| GB/T 19472.2-2017 |
Polyethylene structure-wall piping systems for underground usage—Part2: Polyethylene spirally enwound structure-wall pipes 埋地用聚乙烯（PE）结构壁管道系统 第2部分：聚乙烯缠绕结构壁管材 |
China National Standards spirally |
English PDF |
| GB/T 19472.2-2004 |
Polyethylene structure-wall piping system for underground usage--Part 2:Polyethylene spirally enwound structure-wall pipes 埋地用聚乙烯(PE)结构壁管道系统 第2部分:聚乙烯缠绕结构壁管材 |
China National Standards spirally |
English PDF |
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