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Qingdao Tlead International Co., Ltd.
Beijing Topsky Century Holding Co., Ltd.
Nengshi Analytical Sensor Co., Ltd.
Hangzhou Lohand Biological Co., Ltd.
Nanjing T-Bota Scietech Instruments & Equipment Co., Ltd.
Nanjing Kejie Analytical Instrument Co., Ltd.
Chongqing Gold Mechanical & Electrical Equipment Co., Ltd.
TRYTE TECHNOLOGY (HUNAN) DEVELOPMENT CO., LTD.
Shandong Dongrun Instrument Science and Technology Co., Ltd.
Jinan Handa Electron Technology Co., Ltd.
Huazheng Electric Manufacturing (Baoding) Co., Ltd.
Liaoning Huake Petroleum Apparatus Science & Technology Co., Ltd.