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Nengshi Analytical Sensor Co., Ltd.
Huazheng Electric Manufacturing (Baoding) Co., Ltd.
Fuzhou DIT Industry & Trade Co., Ltd.
Beijing Topsky Century Holding Co., Ltd.
Qingdao Tlead International Co., Ltd.
Q-Ying Plastic & Electronic (Shenzhen) Co., Ltd.
Labmen Instrument Limited
Nanjing T-Bota Scietech Instruments & Equipment Co., Ltd.
Shandong Dongrun Instrument Science and Technology Co., Ltd.
Jinan Handa Electron Technology Co., Ltd.
Nanjing Kejie Analytical Instrument Co., Ltd.
Hangzhou Lohand Biological Co., Ltd.
Chongqing Gold Mechanical & Electrical Equipment Co., Ltd.