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China academy of railway sciences

Tonghao Beijing railway industry group co. LTD

Beijing whole road communication signal research and design institute co. LTD

China railway first survey and design institute group co. LTD

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Support：021-63177969-120

Address：2nd floor, building C, no.300 yuankang road, baoshan district, Shanghai

Zip Code：200070

Tel：021-63177969

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Fax：021-63177313-201

E-mail：shrhdz@163.com

Shanghai Ren hao Electronics Technology CO.,LTD.

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