he_aqi 发表于 2009-2-5 16:04:23

ASTM D1785-04聚氯乙烯塑料管.40,80及120号表

<P>ASTM D1785-04聚氯乙烯塑料管.40,80及120号表</P>
<P>&nbsp;</P>
<P>Standard Specification for<BR>Poly(Vinyl Chloride) (PVC) Plastic Pipe, Schedules 40, 80,<BR>and 1201</P>
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