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Nanjing Kejie Analytical Instrument Co., Ltd.
Qingdao Tlead International Co., Ltd.
Nanjing T-Bota Scietech Instruments & Equipment Co., Ltd.
Beijing Topsky Century Holding Co., Ltd.
Jinan Handa Electron Technology Co., Ltd.
Ningbo Jinghai Machinery Co., Ltd.
WANT Balance Instrument Co., Ltd.
Huazheng Electric Manufacturing (Baoding) Co., Ltd.
Nengshi Analytical Sensor Co., Ltd.
Labmen Instrument Limited
Shanghai Boqu Instrument Co., Ltd.
Shandong China Coal Industrial & Mining Supplies Group Co., Ltd.
Shandong Dongrun Instrument Science and Technology Co., Ltd.