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Tianjin Humanda Technology Development Co., Ltd.
Jinan Youlyy Industrial Co., Ltd.
Citotest Labware Manufacturing Co., Ltd.
Taizhou Runlab Labware Manufacturing Co., Ltd.
Bettering International (HK) Co., Limited
Xilong Scientific Co., Ltd.
Shandong VICTOR Information Technology Co., Ltd.
Suzhou Texnet Co., Ltd.
Chance Door International Co., Ltd.