2013DIN EN 505:2013-06 Roofing products from metal sheet - Specification for fully supported roofing products of steel sheet; German version EN 505:2013
2013DIN EN 505:2013 Roofing products from metal sheet - Specification for fully supported roofing products of steel sheet; German version EN 505:2013
1999DIN EN 505:1999 Roofing products from metal sheet – Specification for fully supported roofing products of steel sheet