The 19th south China (dongguan) international electronics manufacturing purchasing exposition
   Carry out time: 2010-05-14
   By sector: communication/communication/electronic
   Host venues: guangdong modern international exhibition center

   The 8th Shanghai international power and electronic transformer exhibition
   Carry out time: 2009-07-08
   By sector: communication/communication/electronic
   Host venues: Shanghai everbright convention &exhibition center

   The fifth China hi-tech fair
   Carry out time: 2004-04-16
   By sector: communication/communication/electronic
   Venue: shenzhen convention and exhibition center held