Swisswindows AG
Anhui Kangyu Hydropower Machinery Complete Equipment Co., Ltd.
Chongqing Tektronix Environmental Technology Co., Ltd.Chongqing Shi, China
Zhejiang Nobel Enterprise Management Co., Ltd.Zhejiang Sheng, China
Beijing Three-State Environmental Technology Co., Ltd.
Zhejiang Kaikai Electric Co., Ltd.
Tongcheng Xinrui Construction Engineering Co., Ltd.
Shandong Muke Sensor Co., Ltd.Shandong Sheng, China
Foshan Kaigas Door Industry Co., Ltd.
Alliance Machine Co.United States
NAE (Beijing) Electric Control Technology Ltd.
P&PF Co Ltd