Quartet Holdings Ltd.
Nanjing Gangguo Electronic Technology Co., Ltd.
Gaugler & Lutz oHG
Foshan Guangshun Electrical Equipment Co. Ltd.Guangdong Sheng, China
AVIC NANHANG SHENZHEN TEST&CONTROL COMPANY LIMITED
F.J. Aschwanden AG
Fujian Huaxiang Power Technology Co. Ltd.
Linshu Dongtai Machinery Co., Ltd.
Shanghai Xintuo Electric Power Equipment Co.,Ltd.Shanghai Shi, China
MEgA - Merící Energetické Aparáty as
Rongcheng Solid Waste Comprehensive Treatment and Application Industrial Park Co., Ltd.Shandong Sheng, China
CCCC Fourth Aviation Engineering Research Institute Co., Ltd.