P:2009-06-18 18:01:19
2
<DIV class=xxxxAd><SCRIPT type=text/javascript></SCRIPT><SCRIPT src="http://pagead2.googlesyndication--.com/pagead/show_ads.js" type=text/javascript></SCRIPT><SCRIPT>window.google_render_ad();</SCRIPT></DIV>氟塑料絕緣和護(hù)套電纜要求達(dá)到阻燃A類應(yīng)該是很容易的,氟塑料本身的氧指數(shù)就很高,我認(rèn)為繞包采用普通單層無紡布就行了!
absorption coefficient - 吸收系數(shù),吸收率 (0) 投訴