he_aqi 发表于 2009-2-4 16:35:21

ASTM D7050-04 从天然源取样工艺性能分类打捆的橡胶规范

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<P>ASTM D7050-04 从天然源取样和基于预先工艺性能分类打捆的橡胶规范</P>
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<P>Standard Practice for<BR>Rubber from Natural Sources—Sampling and Sorting Bales<BR>Based on Predicted Processing Properties1</P>
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