Add：Room 709, Building 2, Sanwulian Technology Park, No. 2, Haitai Huakke No. 5 Road,
Huayuan Industrial Zone (outside the Ring), Binhai High-tech Zone, Tianjin
Tel：:022-83715982 、020-83715983   
E-mail：tjddjms@hotmail.com    Web：www.tjdadi.com
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