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Beijing Topsky Century Holding Co., Ltd.
Xi'an Tosilon Automation Co., Ltd.
Chongqing Gold Mechanical & Electrical Equipment Co., Ltd.
Shandong Dongrun Instrument Science and Technology Co., Ltd.
Nengshi Analytical Sensor Co., Ltd.
Deson Electric Group Company Limited
Nanjing Kejie Analytical Instrument Co., Ltd.
Shenzhen Security Electronic Equipment Co., Ltd.
Shanghai Boqu Instrument Co., Ltd.
Jinan Handa Electron Technology Co., Ltd.
WANT Balance Instrument Co., Ltd.
Shenzhen Lite Technology Limited
Labmen Instrument Limited