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Beijing Topsky Century Holding Co., Ltd.
Labmen Instrument Limited
Xi'an Heb Biotechnology Co., Ltd.
Nengshi Analytical Sensor Co., Ltd.
Nanjing T-Bota Scietech Instruments & Equipment Co., Ltd.
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Shandong China Coal Industrial & Mining Supplies Group Co., Ltd.
Wincom Company Ltd.
Shenzhen Security Electronic Equipment Co., Ltd.
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Q-Ying Plastic & Electronic (Shenzhen) Co., Ltd.