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          The group welcomes friends from all circles to give suggestions and advices about the construction projects, engineering, construction technology, and relevant question or the website. Our professionals will contact you after receiving your messages.
          Goup Address:NO.6999 Jian Kang street Gao Xin district Wei Fang city Shan Dong province  
          Tel:0536-7528880,7528900
          Fax:0536-8258277
          Zip code:261205
          Website:http://www.changdagroup.com    http://www.www.s1server.com
          E-mail:office@www.s1server.com

          Market Development Department:
          Tel:0536-7528882,7528881
          E-mail:market@www.s1server.com

          Human Resources Department:
          Tel:0536-7528895,7528885
          E-mail:manpower@www.s1server.com
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