Rocsolar New Energy versus Sigma Energy Systems
Website:
http://www.rocsolar.com/en/
Country:
China
Address:
B1020, Huakang Building, No. 899, North Chaoyang Street, Baoding, Hebei
Website:
http://www.sigmaes.eu
Country:
Germany
Address:
In der Kühweid 17, 76661 Philippsburg