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Huazheng Electric Manufacturing (Baoding) Co., Ltd.
Beijing Topsky Century Holding Co., Ltd.
Nengshi Analytical Sensor Co., Ltd.
Nanjing Kejie Analytical Instrument Co., Ltd.
WANT Balance Instrument Co., Ltd.
Dongguan Haida Equipment Co., Ltd.
Wincom Company Ltd.
Shandong Dongrun Instrument Science and Technology Co., Ltd.
Jinan Handa Electron Technology Co., Ltd.
Chongqing Gold Mechanical & Electrical Equipment Co., Ltd.