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Qingdao Tlead International Co., Ltd.
Shenzhen Pride Instrument Inc.
Nanjing Kejie Analytical Instrument Co., Ltd.
Xinxiang Hengyu Machinery Equipment Co., Ltd.
Shanghai Drawell Scientific Instrument Co., Ltd.
Movel Scientific Instrument Co., Ltd.
Shandong China Coal Industrial & Mining Supplies Group Co., Ltd.
Zhengzhou Hepo International Trading Co., Ltd.
Jiangsu Faygo Union Machinery Co.,Ltd
Zhejiang Top Cloud-Agri Technology Co., Ltd.
TRYTE TECHNOLOGY (HUNAN) DEVELOPMENT CO., LTD.
Henan Forever Medical Co., Ltd.
Zhejiang Scientific Instruments & Materials Import & Export Co., Ltd.