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Nanjing Kejie Analytical Instrument Co., Ltd.
Shandong China Coal Industrial & Mining Supplies Group Co., Ltd.
Zhejiang Top Cloud-Agri Technology Co., Ltd.
Xinxiang Hengyu Machinery Equipment Co., Ltd.
Zhejiang Scientific Instruments & Materials Import & Export Co., Ltd.
Shanghai Drawell Scientific Instrument Co., Ltd.
WANT Balance Instrument Co., Ltd.
Shenzhen Pride Instrument Inc.
Zhengzhou Nanbei Instrument Equipment Co., Ltd.
Wincom Company Ltd.
Movel Scientific Instrument Co., Ltd.