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Shanghai Drawell Scientific Instrument Co., Ltd.
Zhuhai City Deyuan Import & Export Co., Ltd.
Shenzhen Security Electronic Equipment Co., Ltd.
Henan TX Crane Co.,Ltd
Nengshi Analytical Sensor Co., Ltd.
Shandong Dongrun Instrument Science and Technology Co., Ltd.
Nanjing Kejie Analytical Instrument Co., Ltd.
Huazheng Electric Manufacturing (Baoding) Co., Ltd.
Labmen Instrument Limited
Shandong China Coal Industrial & Mining Supplies Group Co., Ltd.
Jinan Handa Electron Technology Co., Ltd.
Beijing Topsky Century Holding Co., Ltd.
WANT Balance Instrument Co., Ltd.