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WANT Balance Instrument Co., Ltd.
Shanghai Drawell Scientific Instrument Co., Ltd.
Changzhou Andwin International Corporation Limited
Shenzhen Security Electronic Equipment Co., Ltd.
Zhuhai City Deyuan Import & Export Co., Ltd.
Nengshi Analytical Sensor Co., Ltd.
Nanjing Kejie Analytical Instrument Co., Ltd.
Shandong China Coal Industrial & Mining Supplies Group Co., Ltd.
Beijing Topsky Century Holding Co., Ltd.
Deson Electric Group Company Limited
Jinan Handa Electron Technology Co., Ltd.
HV Hipot Electric Co., Ltd.
Shanghai Boqu Instrument Co., Ltd.
Qingdao Tlead International Co., Ltd.