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Xinxiang Hengyu Machinery Equipment Co., Ltd.
Shanghai Drawell Scientific Instrument Co., Ltd.
Nanjing Kejie Analytical Instrument Co., Ltd.
Wincom Company Ltd.
Shenzhen Pride Instrument Inc.
Shanghai Aucy Scientific Instrument Co., Ltd.
Dongguan Haida Equipment Co., Ltd.
Shenzhen Bonad Instrument Co., Ltd.
Shandong China Coal Industrial & Mining Supplies Group Co., Ltd.
TIME Group Inc.
Movel Scientific Instrument Co., Ltd.
WANT Balance Instrument Co., Ltd.