DIN EN 12560-3:2001-04 Flanges and their joints - Gaskets for class-designated flanges - Part 3: Non-metallic PTFE envelope gaskets; German version EN 12560-3:2001
2001DIN EN 12560-3:2001-04 Flanges and their joints - Gaskets for class-designated flanges - Part 3: Non-metallic PTFE envelope gaskets; German version EN 12560-3:2001
2001DIN EN 12560-3:2001 Flanges and their joints - Gaskets for class-designated flanges - Part 3: Non-metallic PTFE envelope gaskets; German version EN 12560-3:2001