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Q-Ying Plastic & Electronic (Shenzhen) Co., Ltd.
Nanjing T-Bota Scietech Instruments & Equipment Co., Ltd.
Qingdao Tlead International Co., Ltd.
Shandong Dongrun Instrument Science and Technology Co., Ltd.
Zhejiang Scientific Instruments & Materials Import & Export Co., Ltd.
Nengshi Analytical Sensor Co., Ltd.
Nanjing Kejie Analytical Instrument Co., Ltd.
Wincom Company Ltd.
Beijing Topsky Century Holding Co., Ltd.
Changzhou Andwin International Corporation Limited
TRYTE TECHNOLOGY (HUNAN) DEVELOPMENT CO., LTD.