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Shanghai Drawell Scientific Instrument Co., Ltd.
Zhejiang Tugong Instrument Co., Ltd.
Xinxiang Hengyu Machinery Equipment Co., Ltd.
Zhengzhou Hepo International Trading Co., Ltd.
Nanjing Kejie Analytical Instrument Co., Ltd.
Zhejiang Top Cloud-Agri Technology Co., Ltd.
Shenzhen Bonad Instrument Co., Ltd.
WANT Balance Instrument Co., Ltd.
Shenzhen Pride Instrument Inc.
Shandong China Coal Industrial & Mining Supplies Group Co., Ltd.
Movel Scientific Instrument Co., Ltd.