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Nengshi Analytical Sensor Co., Ltd.
WANT Balance Instrument Co., Ltd.
Shandong China Coal Industrial & Mining Supplies Group Co., Ltd.
Shanghai Drawell Scientific Instrument Co., Ltd.
Labmen Instrument Limited
Nanjing Kejie Analytical Instrument Co., Ltd.
Xi'an Heb Biotechnology Co., Ltd.
Qingdao Tlead International Co., Ltd.
Beijing Topsky Century Holding Co., Ltd.
Zhuhai City Deyuan Import & Export Co., Ltd.
Huazheng Electric Manufacturing (Baoding) Co., Ltd.
Hangzhou Lohand Biological Co., Ltd.