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Chongqing Gold Mechanical & Electrical Equipment Co., Ltd.
Zhuhai City Deyuan Import & Export Co., Ltd.
Shanghai Drawell Scientific Instrument Co., Ltd.
Nengshi Analytical Sensor Co., Ltd.
Labmen Instrument Limited
Nanjing Kejie Analytical Instrument Co., Ltd.
Dongguan Haida Equipment Co., Ltd.
Wincom Company Ltd.
TRYTE TECHNOLOGY (HUNAN) DEVELOPMENT CO., LTD.
Huazheng Electric Manufacturing (Baoding) Co., Ltd.
Beijing Topsky Century Holding Co., Ltd.
Liaoning Huake Petroleum Apparatus Science & Technology Co., Ltd.