LST EN 1124-4-2006 Pipes and fittings of longitudinally welded stainless steel pipes with spigot and socket for waste water systems - Part 4: Components for vacuum drainage systems and for drainage systems on ships
2006LST EN 1124-4-2006 Pipes and fittings of longitudinally welded stainless steel pipes with spigot and socket for waste water systems - Part 4: Components for vacuum drainage systems and for drainage systems on ships