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Jinan Handa Electron Technology Co., Ltd.
Nanjing T-Bota Scietech Instruments & Equipment Co., Ltd.
Nanjing Kejie Analytical Instrument Co., Ltd.
Zhuhai City Deyuan Import & Export Co., Ltd.
WANT Balance Instrument Co., Ltd.
Huazheng Electric Manufacturing (Baoding) Co., Ltd.
Shanghai Boqu Instrument Co., Ltd.
Beijing Topsky Century Holding Co., Ltd.
Xi'an Heb Biotechnology Co., Ltd.
Changzhou Andwin International Corporation Limited
Shanghai Drawell Scientific Instrument Co., Ltd.
Shandong China Coal Industrial & Mining Supplies Group Co., Ltd.
Nengshi Analytical Sensor Co., Ltd.
Wincom Company Ltd.
Liaoning Huake Petroleum Apparatus Science & Technology Co., Ltd.