K.E. & Kingstone Co. Ltd.
Hubei Queen-Ocean Electrical Appliance Manufacture Co. Ltd.
Hebei Liaoyuan Telecommunication Equipment Co. Ltd.
Tempearl Industrial Co. Ltd.
Hunan Jiujiu Intelligent Environmental Protection Co., Ltd.Hunan Sheng, China
Anhui Jangho Intelligent Equipment Group Co., Ltd.Anhui Sheng, China
Shanghai Electrical Apparatus Research Institute
Ding Yi Co. Ltd.
Jiangsu Meizhong Medical Technology Co., Ltd.Jiangsu Sheng, China
Wenzhou Yifan Trading Co., Ltd.Zhejiang Sheng, China
Jiangsu Yier Electromechanical Co., Ltd.Jiangsu Sheng, China
Zhuhai Competitive Electronic Technology Co., Ltd.Guangdong Sheng, China