Hebei Oushang versus Sigma Energy Systems
Website:
http://www.oushangsolar.com
Country:
China
Address:
Dazhao Industrial Zone, Hequ Town, Ningjin County, Xingtai, Hebei
Website:
http://www.sigmaes.eu
Country:
Germany
Address:
In der Kühweid 17, 76661 Philippsburg