Precast unreinforced and reinforced concrete components for manholes over buried drains and sewers - Dimensions and technical delivery conditions— 16 стр.
Sealing rings consisting of elastomers for joints in sewers and drains; circular of similar cross-sections, technical specifications for delivery, dimensioning— 10 стр.
Concrete, reinforced and prestressed concrete structures - Part 2: Concrete - Specification, properties, production and conformity - Application rules for DIN EN 206-1— 62 стр.
Directions for transporting and storing of concrete pipes, reinforced concrete pipes, prestressed concrete pipes and fittings and concrete manhole shaft rings— 3 стр.