兑水 发表于 2009-10-3 21:17:40

ASTM D 2949-2001 外径尺寸为3.25英寸厚聚氯乙烯塑料排水管,...

D2949-01a Standard Specification for 3.25-in. Outside Diameter Poly(Vinyl Chloride) (PVC) Plastic Drain, Waste, and Vent Pipe and Fittings
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