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Tianjin Humanda Technology Development Co., Ltd.
Donghai Yukang Quartz Material Co., Ltd.
Kin Yu International Limited
Citotest Labware Manufacturing Co., Ltd.
Anhui Welcome Foreign Trade Co., Ltd.
Taizhou Runlab Labware Manufacturing Co., Ltd.
Lianyungang Hongkang Quartz Products Co., Ltd.
Canfort Laboratory and Education Supplies Co., Ltd.
Movel Scientific Instrument Co., Ltd.