兑水 发表于 2009-11-27 15:28:53

ASTM F 949-2006 光滑内壁聚氯乙烯(PVC)波纹污水管和配件

F949-03 Standard Specification for Poly(Vinyl Chloride) (PVC) Corrugated Sewer Pipe With a Smooth Interior and Fittings
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