DIN EN 1515-3:2005-12 Flanges and their joints - Bolting - Part 3: Classification of bolt materials for steel flanges, Class designated; German version EN 1515-3:2005
2005DIN EN 1515-3:2005-12 Flanges and their joints - Bolting - Part 3: Classification of bolt materials for steel flanges, Class designated; German version EN 1515-3:2005
2005DIN EN 1515-3:2005 Flanges and their joints - Bolting - Part 3: Classification of bolt materials for steel flanges, Class designated; English version of DIN EN 1515-3:2005