Is the Dualsun SPRING panel manufacturing site ISO 9001 certified?
Edited
Yes.
We are proud to assemble the SPRING entirely in France, at an ISO 9001-certified factory.
The ISO 9001 certificate can be downloaded here (french language only)
Thanks to its unique design combining photovoltaic and thermal components, Spring is specifically engineered for:
optimized industrial manufacture
higher-efficiency performance
a more aesthetic appearance and a lower cost than its competitors