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    Tianjin Sitong electronics co., LTD. Located in Shuanggang Economic and Technological Development Zone, high/low frequency...

  address:Baitangkou Village, Xinzhuang
  Town, Jinnan Distrist, Tianiin, China 300350

  telephone:+86-22-58333948

  email:admin@e-sitong.com

  WebSite:www.qd-hk.com

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