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Lianyungang Hongkang Quartz Products Co., Ltd.
Tianjin Humanda Technology Development Co., Ltd.
Changzhou Operson Imp. and Exp. Co., Ltd.
Zhejiang Aijiren Technology, Inc.
Taizhou Runlab Labware Manufacturing Co., Ltd.
Canfort Laboratory and Education Supplies Co., Ltd.
Movel Scientific Instrument Co., Ltd.
Kin Yu International Limited
Citotest Labware Manufacturing Co., Ltd.
Chance Door International Co., Ltd.
Qingdao Carong Import & Export Co., Ltd.