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埋地用硬聚氯乙烯(PVC-U)加筋管材

Unplasticized polyvinyl chloride (PVC-U) ultra-rib pipes for underground usage
標準號:QB/T 2782-2006
Unplasticized polyvinyl chloride (PVC-U) ultra-rib pipes for underground usage
標準號:QB/T 2782-2006