兑水 发表于 2009-11-20 07:00:45

ASTM F 480-2006 按尺寸比例制造的热塑塑料套管管道及连接器...

F480-02 Standard Specification for Thermoplastic Well Casing Pipe and Couplings Made in Standard Dimension Ratios (SDR), SCH 40 and SCH 80
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