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Nanjing Kejie Analytical Instrument Co., Ltd.
Nengshi Analytical Sensor Co., Ltd.
Huazheng Electric Manufacturing (Baoding) Co., Ltd.
Jinan Handa Electron Technology Co., Ltd.
Beijing Topsky Century Holding Co., Ltd.
Shanghai Drawell Scientific Instrument Co., Ltd.
Wincom Company Ltd.
Zhuhai City Deyuan Import & Export Co., Ltd.
Deson Electric Group Company Limited
Liaoning Huake Petroleum Apparatus Science & Technology Co., Ltd.
WANT Balance Instrument Co., Ltd.
Hangzhou Lohand Biological Co., Ltd.
Shenzhen Lite Technology Limited
Qingdao Tlead International Co., Ltd.