兑水 发表于 2009-10-2 10:44:24

ASTM D 2447-2003 以外径尺寸为基准测量的聚乙烯(PE)塑料管.附...

D2447-03 Standard Specification for Polyethylene (PE) Plastic Pipe, Schedules 40 and 80, Based on Outside Diameter
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