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Qingdao Tlead International Co., Ltd.
Labmen Instrument Limited
Nengshi Analytical Sensor Co., Ltd.
Nanjing T-Bota Scietech Instruments & Equipment Co., Ltd.
Shandong Dongrun Instrument Science and Technology Co., Ltd.
Beijing Topsky Century Holding Co., Ltd.
Xi'an Heb Biotechnology Co., Ltd.
Dongguan Haida Equipment Co., Ltd.
Liaoning Huake Petroleum Apparatus Science & Technology Co., Ltd.
Jinan Handa Electron Technology Co., Ltd.
Deson Electric Group Company Limited
Zhuhai City Deyuan Import & Export Co., Ltd.
HV Hipot Electric Co., Ltd.
Shanghai Boqu Instrument Co., Ltd.