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Lianyungang Hongkang Quartz Products Co., Ltd.
Anhui Welcome Foreign Trade Co., Ltd.
Canfort Laboratory and Education Supplies Co., Ltd.
Donghai Yukang Quartz Material Co., Ltd.
Movel Scientific Instrument Co., Ltd.
Tianjin Humanda Technology Development Co., Ltd.
Taizhou Runlab Labware Manufacturing Co., Ltd.
Sure Care Corporation