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Nengshi Analytical Sensor Co., Ltd.
Beijing Topsky Century Holding Co., Ltd.
WANT Balance Instrument Co., Ltd.
Shanghai Drawell Scientific Instrument Co., Ltd.
Ningbo Jinghai Machinery Co., Ltd.
Shandong Dongrun Instrument Science and Technology Co., Ltd.
Nanjing Kejie Analytical Instrument Co., Ltd.
Wincom Company Ltd.
Shanghai Boqu Instrument Co., Ltd.
Qingdao Tlead International Co., Ltd.
HV Hipot Electric Co., Ltd.
Fuzhou DIT Industry & Trade Co., Ltd.