2013DIN EN 12428:2013-04 Industrial, commercial and garage doors - Thermal transmittance - Requirements for the calculation; German version EN 12428:2013
2013DIN EN 12428:2013 Industrial, commercial and garage doors - Thermal transmittance - Requirements for the calculation; German version EN 12428:2013
2000DIN EN 12428:2000 Industrial, commercial and garage doors and gates – Thermal transmittance – Requirements for the calculation