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Beijing Gongyuan Technology Co., Ltd.
Product consultation:
①Engineer Zhang (Technical) 18813093352 (Same as WeChat);
②Engineer Zhang (Sales)18551146612 (Same as WeChat);
Email:dongbin.zhang@bjgongyuan.com
Fax: 010 - 51686285
Postcode: 100044
Company address:Building 1, Huaheng Building, Guang'anmenwai Street, Xicheng District, Beijing