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Beijing Topsky Century Holding Co., Ltd.
Shenzhen Security Electronic Equipment Co., Ltd.
Nengshi Analytical Sensor Co., Ltd.
Wincom Company Ltd.
Shanghai Drawell Scientific Instrument Co., Ltd.
WANT Balance Instrument Co., Ltd.
Dongguan Haida Equipment Co., Ltd.
Changzhou Andwin International Corporation Limited
Jinan Handa Electron Technology Co., Ltd.
Nanjing T-Bota Scietech Instruments & Equipment Co., Ltd.
Jinan Consure Electronic Technology Co.,Ltd
Qingdao Tlead International Co., Ltd.
Labmen Instrument Limited
Nanjing Kejie Analytical Instrument Co., Ltd.