Compare Solar Panel Manufacturers: Open Group Holding vs Sigma Energy Systems

Website:

http://www.cn-opengroup.com

Country:

China

Address:

7th Floor, Open Building, Liunan Industrial Zone, Xiangyang Town, Yueqing, Wenzhou, Zhejiang

Website:

http://www.sigmaes.eu

Country:

Germany

Address:

In der Kühweid 17, 76661 Philippsburg