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  • Jiangsu - Recognized Enterprise Technology Center Jiangsu - Recognized Enterprise Technology Center Jiangsu - Recognized Enterprise Technology Center
  • National High-Tech Enterprise Certificate National High-Tech Enterprise Certificate National High-Tech Enterprise Certificate
  • Construction Enterprise Qualification Certificate (Environmental Protection Grade 3) Construction Enterprise Qualification Certificate (Environmental Protection Grade 3) Construction Enterprise Qualification Certificate (Environmental Protection Grade 3)
  • 3A Credit Rating Certificate 3A Credit Rating Certificate 3A Credit Rating Certificate
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No. 749, Dixiu Road, Binjiang Economic Development Zone, Jiangning, Nanjing, Jiangsu, China 9th Floor, Phoenix International Building, Gulou District, Nanjing, Jiangsu, China E-mail：hdjn@hdjn.com.cn  
E-mail：hdjn@hdjn.com.cn Fax：（＋86) 025-83405596
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