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Q-Ying Plastic & Electronic (Shenzhen) Co., Ltd.
Xi'an Heb Biotechnology Co., Ltd.
Nanjing Kejie Analytical Instrument Co., Ltd.
Nengshi Analytical Sensor Co., Ltd.
Huazheng Electric Manufacturing (Baoding) Co., Ltd.
Jinan Handa Electron Technology Co., Ltd.
Wincom Company Ltd.
Shandong China Coal Industrial & Mining Supplies Group Co., Ltd.
Beijing Topsky Century Holding Co., Ltd.
Qingdao Tlead International Co., Ltd.
Liaoning Huake Petroleum Apparatus Science & Technology Co., Ltd.
Nanjing T-Bota Scietech Instruments & Equipment Co., Ltd.
Shenzhen Handsome Technology Co., Ltd.