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Xi'an Heb Biotechnology Co., Ltd.
Zhejiang Scientific Instruments & Materials Import & Export Co., Ltd.
Nengshi Analytical Sensor Co., Ltd.
Shandong China Coal Industrial & Mining Supplies Group Co., Ltd.
Nanjing Kejie Analytical Instrument Co., Ltd.
Q-Ying Plastic & Electronic (Shenzhen) Co., Ltd.
Shandong Dongrun Instrument Science and Technology Co., Ltd.
Huazheng Electric Manufacturing (Baoding) Co., Ltd.
Deson Electric Group Company Limited
Zhuhai City Deyuan Import & Export Co., Ltd.
Hangzhou Lohand Biological Co., Ltd.
Nanjing T-Bota Scietech Instruments & Equipment Co., Ltd.
Beijing Topsky Century Holding Co., Ltd.