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Wincom Company Ltd.
Fuzhou DIT Industry & Trade Co., Ltd.
Beijing Topsky Century Holding Co., Ltd.
Nanjing Kejie Analytical Instrument Co., Ltd.
WANT Balance Instrument Co., Ltd.
Dongguan Haida Equipment Co., Ltd.
Labmen Instrument Limited
Nengshi Analytical Sensor Co., Ltd.
Chongqing Gold Mechanical & Electrical Equipment Co., Ltd.
Shandong China Coal Industrial & Mining Supplies Group Co., Ltd.
Liaoning Huake Petroleum Apparatus Science & Technology Co., Ltd.
Shanghai Boqu Instrument Co., Ltd.