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Shanghai Boqu Instrument Co., Ltd.
HV Hipot Electric Co., Ltd.
Nengshi Analytical Sensor Co., Ltd.
Beijing Topsky Century Holding Co., Ltd.
Jinan Handa Electron Technology Co., Ltd.
Zhuhai City Deyuan Import & Export Co., Ltd.
Shandong Dongrun Instrument Science and Technology Co., Ltd.
Huazheng Electric Manufacturing (Baoding) Co., Ltd.
Nanjing T-Bota Scietech Instruments & Equipment Co., Ltd.
Nanjing Kejie Analytical Instrument Co., Ltd.
Shanghai Drawell Scientific Instrument Co., Ltd.
Shenzhen Security Electronic Equipment Co., Ltd.