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Changzhou Operson Imp. and Exp. Co., Ltd.
Citotest Labware Manufacturing Co., Ltd.
Tianjin Humanda Technology Development Co., Ltd.
Jinjiang Jiaxing Group Co., Ltd.
Donghai Yukang Quartz Material Co., Ltd.
Anhui Welcome Foreign Trade Co., Ltd.
Canfort Laboratory and Education Supplies Co., Ltd.
Taizhou Runlab Labware Manufacturing Co., Ltd.
Shanghai Joylab Medical Instruments Co., Ltd.
Qingdao Carong Import & Export Co., Ltd.
Yancheng Huisheng Medical Instrument Factory