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Changzhou Danrui Experimental Instrument Equipment Co., Ltd.
Qingdao Carong Import & Export Co., Ltd.
Tianjin Humanda Technology Development Co., Ltd.
OPTECK MANUFACTURING GROUP LTD.
VY Optoelectronics Co., Ltd.
Zhuhai City Deyuan Import & Export Co., Ltd.
Beijing Topsky Century Holding Co., Ltd.
GIAI PHOTONICS CO., LTD.
Beijing Zohonice Beauty Equipment Co., Ltd.
Zhejiang Aijiren Technology, Inc.
Beijing ADSS Development Co., Ltd.
Shanghai Aucy Scientific Instrument Co., Ltd.
Shenzhen Haiwang Sensor Co., Ltd.
Nanjing Co-Energy Optical Crystal Co., Ltd.
Changzhou Operson Imp. and Exp. Co., Ltd.
Jinjiang Jiaxing Group Co., Ltd.
Jinhua Yidi Medical Appliance Co., Ltd.
Beijing Topmachines S&T Co., Ltd.