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Nanjing T-Bota Scietech Instruments & Equipment Co., Ltd.
Huazheng Electric Manufacturing (Baoding) Co., Ltd.
Xi'an Heb Biotechnology Co., Ltd.
Beijing Topsky Century Holding Co., Ltd.
Shandong China Coal Industrial & Mining Supplies Group Co., Ltd.
Nengshi Analytical Sensor Co., Ltd.
Labmen Instrument Limited
Qingdao Tlead International Co., Ltd.
Jinan Handa Electron Technology Co., Ltd.
Shenzhen Lite Technology Limited
Chongqing Gold Mechanical & Electrical Equipment Co., Ltd.
Shenzhen Handsome Technology Co., Ltd.
Fuzhou DIT Industry & Trade Co., Ltd.