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Liaoning Huake Petroleum Apparatus Science & Technology Co., Ltd.
Qingdao Tlead International Co., Ltd.
Beijing Topsky Century Holding Co., Ltd.
Huazheng Electric Manufacturing (Baoding) Co., Ltd.
WANT Balance Instrument Co., Ltd.
Nanjing T-Bota Scietech Instruments & Equipment Co., Ltd.
Zhejiang Scientific Instruments & Materials Import & Export Co., Ltd.
Labmen Instrument Limited
Nengshi Analytical Sensor Co., Ltd.
Shanghai Drawell Scientific Instrument Co., Ltd.
Jinan Handa Electron Technology Co., Ltd.
Shenzhen Handsome Technology Co., Ltd.
Hangzhou Lohand Biological Co., Ltd.