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WANT Balance Instrument Co., Ltd.
Qingdao Tlead International Co., Ltd.
Shandong China Coal Industrial & Mining Supplies Group Co., Ltd.
Shenzhen Keyto Fluid Control Co., Ltd.
Movel Scientific Instrument Co., Ltd.
Shenzhen Pride Instrument Inc.
Nanjing Kejie Analytical Instrument Co., Ltd.
Shanghai Drawell Scientific Instrument Co., Ltd.
Xinxiang Hengyu Machinery Equipment Co., Ltd.
Biobase Biodustry (Shandong) Co., Ltd.