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Qingdao Ming Source Machinery Technology Co.,Ltd
Taizhou Maisilang Electronics Technology Co.,Ltd
Shanghai Boqu Instrument Co., Ltd.
Nengshi Analytical Sensor Co., Ltd.
Qingdao Tlead International Co., Ltd.
Beijing Topsky Century Holding Co., Ltd.
Shenzhen Security Electronic Equipment Co., Ltd.
Shanghai Drawell Scientific Instrument Co., Ltd.
Jinan Handa Electron Technology Co., Ltd.
Nanjing Kejie Analytical Instrument Co., Ltd.
Shandong China Coal Industrial & Mining Supplies Group Co., Ltd.
Shandong Dongrun Instrument Science and Technology Co., Ltd.
WANT Balance Instrument Co., Ltd.
Wincom Company Ltd.
TRYTE TECHNOLOGY (HUNAN) DEVELOPMENT CO., LTD.