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Chongqing Gold Mechanical & Electrical Equipment Co., Ltd.
Qingdao Tlead International Co., Ltd.
Shandong Dongrun Instrument Science and Technology Co., Ltd.
Shenzhen Security Electronic Equipment Co., Ltd.
Nengshi Analytical Sensor Co., Ltd.
WANT Balance Instrument Co., Ltd.
Jinan Handa Electron Technology Co., Ltd.
TRYTE TECHNOLOGY (HUNAN) DEVELOPMENT CO., LTD.
Shanghai Drawell Scientific Instrument Co., Ltd.
Nanjing Kejie Analytical Instrument Co., Ltd.
Fuzhou DIT Industry & Trade Co., Ltd.
Shanghai Boqu Instrument Co., Ltd.
Beijing Topsky Century Holding Co., Ltd.
Liaoning Huake Petroleum Apparatus Science & Technology Co., Ltd.
Shenzhen Handsome Technology Co., Ltd.