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Tianjin Humanda Technology Development Co., Ltd.
Shandong Dongrun Instrument Science and Technology Co., Ltd.
Ningbo Hongbo Optical Instrument Co., Ltd.
Lianyungang Hongkang Quartz Products Co., Ltd.
Shijiazhuang Zeyuan Optics Co., Ltd.
Jiangsu Tianyuan Experiment Equipment Co., Ltd.
Qingdao Carong Import & Export Co., Ltd.
Labmen Instrument Limited
Guangzhou Dimei Beauty Technology Co., Ltd.
Wuxi Srowav Machinery Co.,Ltd
Nengshi Analytical Sensor Co., Ltd.
Shandong China Coal Industrial & Mining Supplies Group Co., Ltd.
Guangdong Huilv Laboratory Equipment Scientific and Technological Co., Ltd.
Fujian East Promotions Co., Ltd.
Junhong Electronic & Technology Co., Ltd.
Q-Ying Plastic & Electronic (Shenzhen) Co., Ltd.
Shanghai Bioha Technology Co., Ltd.
GIAI PHOTONICS CO., LTD.