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Beijing Hongyuan Intellectual Property Agency Co., Ltd.
- Address：2210, 22nd Fl., Minsheng Tower, No. 38 East Third Ring North Road, Chaoyang District, Beijing 100026, China.
- Phone：010-65617300
- Fax：010-66018203
- E-mail：info@granderip.com
Shenzhen branch
- Address：Shenzhen City
- Phone：0755-26654544
Jinan branch
- Address：Jinan City
- Phone：0531-81761600
Suzhou branch
- Address：Suzhou City
- Phone：0512-65392317