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Bettering International (HK) Co., Limited
Citotest Labware Manufacturing Co., Ltd.
Jinan Youlyy Industrial Co., Ltd.
Suzhou Texnet Co., Ltd.
Xilong Scientific Co., Ltd.
Taizhou Runlab Labware Manufacturing Co., Ltd.
Danyang Jingding Glassworks Co., Ltd.
Tianjin Humanda Technology Development Co., Ltd.