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Shanghai Guanyi Electronic Technology Co., Ltd. (referred to as Guanyi Electronics)

Service Hotline:400-086-7266;
Contact Phone:0086-021-61204058;
URL:https://www.mmimmu.com;https://www.guanyee.net;
Email:eric@guanyee.net; mimmu@mmimmu.com; 
Address:Room 401, Building 8, R&D Building, Caohejing High-tech Park, No.518, Xinzhuan Road, Shanghai