DIN EN 4554:2004-08 Aerospace series - Pipe coupling 37°, spherical, in heat resisting steel - Straight unions, threaded - Inch series; German and English version EN 4554:2003
2004DIN EN 4554:2004-08 Aerospace series - Pipe coupling 37°, spherical, in heat resisting steel - Straight unions, threaded - Inch series; German and English version EN 4554:2003
2004DIN EN 4554:2004 Aerospace series - Pipe coupling 37°, spherical, in heat resisting steel - Straight unions, threaded - Inch series; German and English version EN 4554:2003