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Zhejiang Scientific Instruments & Materials Import & Export Co., Ltd.
Shandong China Coal Industrial & Mining Supplies Group Co., Ltd.
Nanjing Kejie Analytical Instrument Co., Ltd.
Movel Scientific Instrument Co., Ltd.
Shenzhen Pride Instrument Inc.
Shanghai Drawell Scientific Instrument Co., Ltd.
Qingdao Tlead International Co., Ltd.
Xinxiang Hengyu Machinery Equipment Co., Ltd.
Shenzhen Keyto Fluid Control Co., Ltd.
WANT Balance Instrument Co., Ltd.
Zhejiang Top Cloud-Agri Technology Co., Ltd.
Dongguan Haida Equipment Co., Ltd.