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Keyword:
| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| QB/T 1916-2004 |
Unplasticized polyvinyl chloride (PVC-U) double wall corrugated pipes 硬聚氯乙烯（PVC-U）双壁波纹管材 |
China Light Industry
Standards PVC corrugated |
 English PDF |
| QB/T 3631-1999 |
(PVC corrugated conduit) 聚氯乙烯塑料波纹电线管 |
China Light Industry
Standards PVC corrugated |
English PDF |
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