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Qingdao Carong Import & Export Co., Ltd.
Movel Scientific Instrument Co., Ltd.
Tianjin Humanda Technology Development Co., Ltd.
Donghai Yukang Quartz Material Co., Ltd.
Canfort Laboratory and Education Supplies Co., Ltd.
Shanxi Midas Industrial Co., Ltd.
Lianyungang Hongkang Quartz Products Co., Ltd.
Sure Medical Supply & Equipment Co., Ltd.
Zhejiang Aijiren Technology, Inc.