• 网址大全-机械设计网

  http://www.machine8.net/industry/index.htm
  

  侯大哥 2008-11-21 12:59

  我也收藏
  

• google

  http://www.google.cn/search?hl=zh-CN&inlang=zh-CN&newwindow=1&client=pub-4273724667394431&prog=aff&oe=GB2312&q=%E9%99%88%E5%86%A0%E5%B8%8C%E8%89%B3%E7%85%A7%E4%B8%8B%E8%BD%BD&revid=294790905&sa=X&oi=revisions_inline&resnum=0&ct=broad-revision&cd=7
  

  侯大哥 2008-10-30 20:54

  我也收藏