Bezirk Wels
UPGRADE CONSULTING ENGINEERS 
DI Walter Pehn M.Sc.
Fabrikstraße 36
4600 Wels
Tel.: 0650/7716273
walter.pehnupgradecc
www.upgrade.cc
UPGRADE CONSULTING ENGINEERS
DI Walter Pehn M.Sc.
Fabrikstraße 36
4600 Wels
Tel.: 0650/7716273
walter.pehnupgradecc
www.upgrade.cc
O.Ö. Energiesparverband
A-4020 Linz, Landstraße 45
Tel: +43-732-7720-14380
E-Mail: officeesv.orat
www.energiesparverband.at
