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Yongkang Ocean Imp and Exp Co.,Ltd
Zhuhai City Deyuan Import & Export Co., Ltd.
Nanjing Kejie Analytical Instrument Co., Ltd.
Beijing Topsky Century Holding Co., Ltd.
Shandong Dongrun Instrument Science and Technology Co., Ltd.
Ningbo Jinghai Machinery Co., Ltd.
Labmen Instrument Limited
WANT Balance Instrument Co., Ltd.
Shandong China Coal Industrial & Mining Supplies Group Co., Ltd.
Liaoning Huake Petroleum Apparatus Science & Technology Co., Ltd.
Huazheng Electric Manufacturing (Baoding) Co., Ltd.
Nengshi Analytical Sensor Co., Ltd.
Jinan Handa Electron Technology Co., Ltd.
Wincom Company Ltd.
TRYTE TECHNOLOGY (HUNAN) DEVELOPMENT CO., LTD.
Q-Ying Plastic & Electronic (Shenzhen) Co., Ltd.