Pipes and fittings for subsoil drainage of trafficked areas and underground engineering - Part 3: Pipes and fittings made from concrete and their joints— 19 стр.
Elastomeric seals - Material requirements for pipe joint seals used in water and drainage applications - Part 1: Vulcanized rubber; German version EN 681-1:1996 + A1:1998 + A2:2002 + AC:2002 + A3:2005— 26 стр.
Directions for transporting and storing of concrete pipes, reinforced concrete pipes, prestressed concrete pipes and fittings and concrete manhole shaft rings— 3 стр.
