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     Shandong Techung Products Co.,Ltd.

      Tel: +86 531 86160901

      Mobile: +86 15840686828

      QQ: 191451936

      Wechat: techung

      Linkedin:Techung Chang

      Email: techung@163.com;191451936@qq.com

      Address: Xiangtai Square3-2907,Shizhong District,Jinan City,Shandong Province,China.