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Fuzhou DIT Industry & Trade Co., Ltd.
Xi'an Tosilon Automation Co., Ltd.
Labmen Instrument Limited
WANT Balance Instrument Co., Ltd.
Beijing Topsky Century Holding Co., Ltd.
Nengshi Analytical Sensor Co., Ltd.
Xi'an Heb Biotechnology Co., Ltd.
Nanjing Kejie Analytical Instrument Co., Ltd.
Jinan Handa Electron Technology Co., Ltd.
Huazheng Electric Manufacturing (Baoding) Co., Ltd.
Ningbo Jinghai Machinery Co., Ltd.
Shandong China Coal Industrial & Mining Supplies Group Co., Ltd.
Shanghai Drawell Scientific Instrument Co., Ltd.