he_aqi 发表于 2009-2-5 16:29:55

ASTM D1593-99非硬性氯乙烯塑料薄板

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<P>ASTM D1593-99非硬性氯乙烯塑料薄板</P>
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<P>Standard Specification for<BR>Nonrigid Vinyl Chloride Plastic Film and Sheeting1</P>
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