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Tianjin Humanda Technology Development Co., Ltd.
Movel Scientific Instrument Co., Ltd.
Donghai Yukang Quartz Material Co., Ltd.
Canfort Laboratory and Education Supplies Co., Ltd.
Taizhou Runlab Labware Manufacturing Co., Ltd.
Qingdao Carong Import & Export Co., Ltd.
Sure Care Corporation
Xilong Scientific Co., Ltd.
Kin Yu International Limited
Anhui Welcome Foreign Trade Co., Ltd.