DIN EN 1514-4:1997-08 Flanges and their joints - Dimensions of gaskets for PN-designated flanges - Part 4: Corrugated flat or grooved metallic and filled metallic gaskets for use with steel flanges; German version EN 1514-4:1997
1997DIN EN 1514-4:1997-08 Flanges and their joints - Dimensions of gaskets for PN-designated flanges - Part 4: Corrugated flat or grooved metallic and filled metallic gaskets for use with steel flanges; German version EN 1514-4:1997
1997DIN EN 1514-4:1997 Flanges and their joints - Dimensions of gaskets for PN-designated flanges - Part 4: Corrugated flat or grooved metallic and filled metallic gaskets for use with steel flanges; German version EN 1514-4:1997