3
樓主解釋下吧,你是問生膠的還是混煉膠的機械性能呢?
<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>一般要比標(biāo)準(zhǔn)要求大多少?????
