GB/T 18477.3-2009
AbolishedUnplasticized 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
Application Summary AI generated
This standard specifies the classification, requirements, test methods, and inspection rules for unplasticized polyvinyl chloride (PVC-U) structure wall pipes with a bilayer and axial hollow-wall construction. It is applied in the manufacturing and quality verification of underground drainage and soil waste pipeline systems, particularly for municipal infrastructure, residential developments, and industrial drainage networks where high ring stiffness and resistance to external loads are required.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.