Ningbo Jinou Hardware Co. Ltd.
Pearl Group Co., Ltd.
Nanjing Shipping World Information Technology Co., Ltd.Jiangsu Sheng, China
Qingdao Yujin Electro-Circuit Systems Co. Ltd.
The F.J. Westcott Co.Ohio, United States
Institute of Building Physics, China Academy of Building Research
Xinpai Shanghai Catering Management Co., Ltd.
Dongguan Visana Electronic Technology Co., Ltd.Guangdong Sheng, China
Jinhua Jingyan Electromechanical Co., Ltd.Zhejiang Sheng, China
Tianjin Ganghang Installation Engineering Co Ltd.Tianjin Shi, China
Huize (Nanjing) Environmental Protection Technology Co., Ltd.Jiangsu Sheng, China
Nanjing Magic Technology Development Co., Ltd.Jiangsu Sheng, China