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Hangzhou Lohand Biological Co., Ltd.
Beijing Topsky Century Holding Co., Ltd.
Nengshi Analytical Sensor Co., Ltd.
Nanjing T-Bota Scietech Instruments & Equipment Co., Ltd.
Shanghai Drawell Scientific Instrument Co., Ltd.
Liaoning Huake Petroleum Apparatus Science & Technology Co., Ltd.
Wincom Company Ltd.
Chongqing Gold Mechanical & Electrical Equipment Co., Ltd.
Fuzhou DIT Industry & Trade Co., Ltd.
Jinan Handa Electron Technology Co., Ltd.
Shanghai Boqu Instrument Co., Ltd.
Changzhou Andwin International Corporation Limited
Huazheng Electric Manufacturing (Baoding) Co., Ltd.