Aerospace series - Pipe couplings, 37°, spherical, in heat resisting steel - Tees nipples, welded end - Inch series; German and English version EN 4557:2003— 21 стр.
Aerospace series - Pipe coupling 37° spherical, up to 21000 kPa - Inch series - Technical specification; German and English version EN 4560:2003— 38 стр.
Aerospace series - Pipe coupling, in heat resisting steel or in heat resisting nickel alloy - Coupling end, welded - Design configuration - Inch series; German and English version EN 4549:2003— 14 стр.
Aerospace series - Pipe coupling 37° - Design configuration - Inch series - Part 1: Male sealing ends, spherical; German and English version EN 4550-1:2003— 13 стр.
