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Beijing Topsky Century Holding Co., Ltd.
Nengshi Analytical Sensor Co., Ltd.
Jinan Handa Electron Technology Co., Ltd.
Nanjing T-Bota Scietech Instruments & Equipment Co., Ltd.
Qingdao Tlead International Co., Ltd.
Huazheng Electric Manufacturing (Baoding) Co., Ltd.
Shanghai Boqu Instrument Co., Ltd.
Deson Electric Group Company Limited
Nanjing Kejie Analytical Instrument Co., Ltd.
Labmen Instrument Limited
HV Hipot Electric Co., Ltd.
Wincom Company Ltd.
Hangzhou Lohand Biological Co., Ltd.