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2007


 

  • Shenzhen SED Wireless Communication Technology Co., Ltd was established

  • The first self-developed GSM-R handset SED OPH-810 in China was announced

  • Accomplished the first on-site test in Datong-Qinhuangdao Railway

  • SED OPH-810R passed the GSM-R certification of China Academy of Railway Sciences 

 

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