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Nengshi Analytical Sensor Co., Ltd.
Nanjing T-Bota Scietech Instruments & Equipment Co., Ltd.
Ningbo Jinghai Machinery Co., Ltd.
Labmen Instrument Limited
Zhejiang Scientific Instruments & Materials Import & Export Co., Ltd.
Qingdao Tlead International Co., Ltd.
Beijing Topsky Century Holding Co., Ltd.
Huazheng Electric Manufacturing (Baoding) Co., Ltd.
Jinan Handa Electron Technology Co., Ltd.
Shenzhen Security Electronic Equipment Co., Ltd.
Nanjing Kejie Analytical Instrument Co., Ltd.
Chongqing Gold Mechanical & Electrical Equipment Co., Ltd.
Zhuhai City Deyuan Import & Export Co., Ltd.