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Tianjin Humanda Technology Development Co., Ltd.
Qingdao Carong Import & Export Co., Ltd.
Taizhou Runlab Labware Manufacturing Co., Ltd.
Canfort Laboratory and Education Supplies Co., Ltd.
Yancheng Diling Medical Instruments Co., Ltd.
Shenzhen Pride Instrument Inc.
Changzhou Operson Imp. and Exp. Co., Ltd.
Kin Yu International Limited