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Nanjing T-Bota Scietech Instruments & Equipment Co., Ltd.
Qingdao Tlead International Co., Ltd.
Nanjing Kejie Analytical Instrument Co., Ltd.
Beijing Topsky Century Holding Co., Ltd.
Huazheng Electric Manufacturing (Baoding) Co., Ltd.
TRYTE TECHNOLOGY (HUNAN) DEVELOPMENT CO., LTD.
Shandong China Coal Industrial & Mining Supplies Group Co., Ltd.
WANT Balance Instrument Co., Ltd.
Chongqing Gold Mechanical & Electrical Equipment Co., Ltd.
Liaoning Huake Petroleum Apparatus Science & Technology Co., Ltd.
Shanghai Drawell Scientific Instrument Co., Ltd.
Labmen Instrument Limited
Nengshi Analytical Sensor Co., Ltd.
Ningbo Jinghai Machinery Co., Ltd.