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Guangzhou Rongzhiyou Medical & Technology Co., Ltd.
Guangzhou Yihua Electronic Equipment Co., Ltd.
Shanghai Xinyi Education Technology Co., Ltd.
Ningbo Hi-Tech Park Bolin Technique Co., Ltd.
Tangshan UMG Medical Insrument Co., Ltd.
Canfort Laboratory and Education Supplies Co., Ltd.
Guangzhou Med Equipment Co., Ltd.
Wenzhou Success Group Co., Ltd.
Foshan Sident Technology Limited