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Shanghai Drawell Scientific Instrument Co., Ltd.
Labmen Instrument Limited
Zhejiang Scientific Instruments & Materials Import & Export Co., Ltd.
Nengshi Analytical Sensor Co., Ltd.
Beijing Topsky Century Holding Co., Ltd.
Liaoning Huake Petroleum Apparatus Science & Technology Co., Ltd.
Shandong Dongrun Instrument Science and Technology Co., Ltd.
Shenzhen Lite Technology Limited
Nanjing Kejie Analytical Instrument Co., Ltd.
Huazheng Electric Manufacturing (Baoding) Co., Ltd.
Qingdao Tlead International Co., Ltd.
Shandong China Coal Industrial & Mining Supplies Group Co., Ltd.
Chongqing Gold Mechanical & Electrical Equipment Co., Ltd.
Jinan Handa Electron Technology Co., Ltd.
Nanjing T-Bota Scietech Instruments & Equipment Co., Ltd.
Fuzhou DIT Industry & Trade Co., Ltd.
TRYTE TECHNOLOGY (HUNAN) DEVELOPMENT CO., LTD.